#include<stdio.h>#include<math.h>int main(){int aa, bb, cc;double re;printf("Input math1, English and math2:");scanf("%d,%d,%d", &aa, &bb, &cc);re = ( aa * 5 + bb * 1.5 + cc * 3.5) / 10;printf("Final score = %.2f\n", re);return 0;}#include<stdio.h>#include<math.h>int main(){float re;int i, day;printf("Input length and days:");scanf("%f,%d", &re, &day);for ( i=0; i< day; i++){re = re / 2;}printf("length=%.5f\n", re);return 0;}#include<stdio.h>#include<math.h>int main(){float re;printf("Input payment p:");scanf("%f", &re);re = re * 0.92;printf("price = %.1f\n", re);return 0;}#include<stdio.h>#include<math.h>typedef struct clock{int hour, minute, second;}CLOCK;int main(){CLOCK clock1,clock2;int diff=0, hour, minute;printf("Input time one(hour, second):");scanf("%d,%d", &clock1.hour,&clock1.minute);printf("Input time two(hour, second):");scanf("%d,%d", &clock2.hour,&clock2.minute);diff = abs((clock1.hour * 60 + clock1.minute) - (clock2.hour * 60 + clock2.minute));hour = floor(diff / 60);minute = diff % 60;printf("%d hour %d second\n",hour, minute);return 0;}#include <stdio.h> #include<math.h>int gcd(int x,int y){int r=x%y;while(r){x=y;y=r;r=x%y;}return y;}int main(){int a,b,c,d,t;printf("Input a/b, c/d:" );scanf("%d/%d,%d/%d",&a,&b,&c,&d);if(b>d){t=gcd(b,d);}else{t=gcd(d,b);}if(a*d/t>c*b/t)printf("%d/%d>%d/%d",a,b,c,d);else if(a*d/t==c*b/t)printf("%d/%d=%d/%d",a,b,c,d);elseprintf("%d/%d<%d/%d",a,b,c,d);return 0;}#include <stdio.h>#include <math.h>int main(){int year;double capital,rate, deposit;char n;printf("Input rate, year, capital:");scanf("%lf,%d,%lf",&rate, &year,&capital );printf("Compound interest (Y/N)?");scanf(" %c",&n);if(n=='n'||n=='N')deposit=capital*(1+rate*year);elsedeposit=capital*pow((1+rate),year);printf("deposit = %.4f\n",deposit);return 0;}#include <stdio.h>#include <math.h>int main(){int year;double capital,rate,deposit;char n;printf("Input capital, year:");scanf("%lf,%d",&capital,&year);printf("Compound interest (Y/N)?");scanf(" %c",&n);if(year==1||year==2||year==3||year==5||year==8) {switch(year){case 1:rate=0.0225; break;case 2:rate=0.0243; break;case 3:rate=0.0270; break;case 5:rate=0.0288; break;case 8:rate=0.0300; break;}if(n=='n'||n=='N') deposit=capital*(1+rate*year);else deposit=capital*pow((1+rate),year);printf("rate = %.4f, deposit = %.4f\n",rate,deposit);}else printf("Error year!\n");return 0;}#include<stdio.h>main(){int man , women ,children ;printf( "Man Women Children\n" ) ;for(man = 0 ; man <17 ; man++){for(women = 0 ; women <25 ;women++){children = 30 -women -man ;if(3*man +2*women + children ==50){printf("%3d%8d%8d\n" ,man,women ,children) ;}}}}#include<stdio.h>void main(){int e[10],t,d,b,i,j,a;char OK_flag=0;for(a=10;a<34;a++){d=a*a*a;b=a*a*a*a;e[0]=d/1000;e[1]=d/100%10;e[2]=d/10%10;e[3]=d%10;e[4]=b/100000;e[5]=b/10000%10;e[6]=b/1000%10;e[7]=b/100%10;e[8]=b/10%10;e[9]=b%10;for(i=0;i<9;i++)for(j=i+1;j<9+1;j++)if(e[i]>e[j]){t=e[i];e[i]=e[j];e[j]=t;}//if(e[]=={0,1,2,3,4,5,6,7,8,9})for(i=0;i<=9;i++)if(e[i]==i){OK_flag=1; continue;}else{OK_flag=0;break;}if(OK_flag) printf("age=%d\n",a); }}#include <stdio.h>int main(void){int yn, jn, i, count = 0;printf("Input your birth year:");scanf("%d", &yn);printf("Input this year:");scanf("%d", &jn);for (i = yn; i <= jn; i++){if (i % 4 == 0){printf("%d\n", i);count++;}}printf("count=%d\n", count);return 0;}#include <stdio.h>int main(void){int yn, jn, i;long unsigned count = 0;printf("Input your birth year:");scanf("%d", &yn);printf("Input this year:");scanf("%d", &jn);for (i = yn; i < jn; i++){if (i % 4 == 0){count = count + 366 * 24 * 60 * 75;}elsecount = count + 365 * 24 * 60 * 75;}}printf("The heart beats in your life: %lu", count);return 0;}#include<stdio.h>long Fact(int n);int main(void){int hundred, ten, one, m, n;for (hundred = 1;hundred <= 6;hundred++){for (ten = 0;ten <= 6;ten++){for (one = 0;one <= 6;one++){m = hundred * 100 + ten * 10 + one;n = Fact(hundred) + Fact(ten) + Fact(one);if (m == n){printf("%d\n", n);}}}}return 0;}long Fact(int n){int i;long s = 1;for (i = 1;i <= n;i++){s *= i;}}#include<stdio.h>int Func(int n);int main(void){int n1, m1;printf("Input n:");scanf("%d", &n1);if (n1 < 1000 || n1 > 1000000){printf("Input error!\n");return 0;}m1 = Func(n1);printf("%d\n", m1);return 0;}int Func(int n){int ys, i;for (i = n; i > 99; i--){if (n % i == 0 && i < 1000){ys = i;break;}}return ys;}#include<stdio.h>int Gcd(int a, int b);{int n1, m1, n2, m2, ys;printf("Input m,n:");scanf("%d,%d", &m1, &n1);if (m1 < 1 || n1 > 10000){printf("Input error!\n");return 0;}ys = Gcd(m1, n1);n2 = n1 / ys;m2 = m1 / ys;printf("%d/%d\n", m2, n2);return 0;}int Gcd(int a, int b){int ys, i, temp;if (a < b){temp = a;a = b;b = temp;}for (i = a; i > 0; i--){if (a % i == 0 && b % i == 0){ys = i;break;}}return ys;}# include <stdio.h>int SumPrime(int n){int i;int k;int sum=0;for(i=2;i<=n;++i ){for(k=2;k<i;++k){if(i%k==0)break;}if(k == i) sum+= k;}return sum;}int main (void){int n;int sum;printf("Input n:");scanf("%d",&n);sum=SumPrime(n);printf("sum=%d\n",sum);return 0;}#include <stdio.h>#include <math.h>double Y(double x, int n);int main(void){int n1;double x1, jieg;printf("Please input x and n:");scanf("%lf,%d", &x1, &n1);jieg = Y(x1, n1);printf("Result=%.2f\n", jieg);return 0;}double Y(double x, int n){double sum = 0;int i;for (i = 0; i < n; i++){sum = sqrt(sum + x);}return sum;}#include <stdio.h>int Sum(int n);int main(void){int n1, jieg;printf("Please input n:");scanf("%d", &n1);if (n1 <= 0){printf("data error!\n");return 0;}else{jieg = Sum(n1);}printf("sum=%d\n", jieg);return 0;}int Sum(int n){int m1 = 0, i;for (i = n; i > 0; i--){m1 = m1 + i;return m1;}#include <stdio.h>int Monkey(int n, int x);int main(void){int n1, gs1 = 1, gs2;printf("Input days n:");scanf("%d", &n1);gs2 = Monkey(n1, gs1);printf("x=%d\n", gs2);return 0;}int Monkey(int n, int x){int i, sum = 1;for (i = n - 1; i > 0; i--){sum = (sum + x) * 2;}return sum;}#include <stdio.h>int main(){int c,d;float w,p;printf("Input payment:");scanf("%f",&p);if(p>=1000)c=10;elsec=p/100;switch(c)case 0:d=0;break;case 1:d=5;break;case 2:case 3:case 4:d=8;break;case 5:case 6:case 7:case 8:case 9:d=10;break;case 10:d=15;break;default:printf("error");break;}w=p*(1-d/100.0);printf("price = %.1f\n" ,w);return 0;}#include<stdio.h>int main(){int a,n[11],i,c,x=0;for(i=1;i<=10;i++){scanf("%d",&n[i]);}scanf("%d",&c);c=c+30;for(i=1;i<=10;i++){if(n[i]<=c)x++;}printf("%d",x);return 0;}#include <stdio.h>int main(void){int n1, a1[1000], i,j, sum, k, count = 0;scanf("%d", &n1);for(i = 0; i < n1; i++){scanf("%d", &a1[i]);}for (i = 0; i < n1 - 1; i++){for (j = i + 1; j < n1; j++){sum = a1[i] + a1[j];for (k = 0; k < n1; k++){if (sum == a1[k]){count++;}}}}printf("%d", count);return 0;}#include<stdio.h>void separate(int m[], int n, int p);int search(int m[]);int main(){int i, j, k, l;int m[10];for (i = 123; i<333; i++){j = i * 2; k = i * 3;separate(m, i, 0);separate(m, j, 3);separate(m, k, 6);if (search(m) == 1) printf("%d,%d,%d\n", i, j, k); }getchar();return 0;}void separate(int m[], int n, int p){m[p] = n / 100;m[p + 1] = (n / 10) % 10;m[p + 2] = n % 10;}int search(int m[]){int i, j, flag = 1;for (i = 0; i<9; i++){for (j = i + 1; j<10; j++)if (m[i] == m[j] ){flag = -1;break;}if (flag == -1) break;}return flag;}#include <stdio.h>int main(void){int n1, i, j, count = 0, sum = 0, a1 = 0;printf("Input n(n<=500):");scanf("%d", &n1);for (i = n1; i > 1; i--){count = 0;for (j = i - 1; j > 0; j--){if (i % j == 0){count++;if (count == 2){break;}}}if (count == 1){a1++;if (a1 > 10){break;}printf("%6d", i);sum = sum + i;}}printf("\nsum=%d\n", sum);return 0;}#include<stdio.h>int CountRepeatNum(int count[], int n); main(){int m, a[100];long int n;printf("Input n:\n");scanf("%ld", &n);m = CountRepeatNum(a,n);if(m == 1)printf("Repeated digit!\n");elseprintf("No repeated digit!\n");}int CountRepeatNum(int count[], int n) {int i = 0, b,flag = 0;int c, d,k;while(n>0){b = n%10;count[i] = b;n/=10;i++;}for(c=0; c<=i; c++){for(d=c+1; d<=i; d++){if(count[c]==count[d])flag++;}}if(flag > 0)return 1;elsereturn -1;}#include<stdio.h>int IsCancel(int a[], int n, int k){int i,s=0;for (i=0;i<n;i++){if (a[i]<=0){s++;}}if (s<k){return 1;}elsereturn 0;}int main(){int a[100];int i,n,k;printf("Input n,k:\n");scanf("%d,%d",&n,&k);for (i=0;i<n;i++){scanf("%d",&a[i]);}if(IsCancel(a,n,k))printf("YES");elseprintf("NO");return 0;}#include<stdio.h>#include<string.h>main(){int a[100][100],m; int n,i,j,k,max,flag=0,shit=0,l; printf("Input m,n:\n"); scanf("%d,%d",&n,&l); printf("Input matrix:\n");for(i=0; i<n; i++)for(j=0; j<l; j++)scanf("%d",&a[i][j]);for(i=0; i<n; i++){ flag=0; m=a[i][0];for(j=0; j<l; j++) if(a[i][j]>m){ m=a[i][j]; max=j;}for(k=0; k<n; k++){if(a[k][max]<=m && k!=i){flag=1; break;}}if(flag==0){printf("a[%d][%d] is %d\n",i,max,m);shit=1;break; }}if (shit==0)printf("No saddle point!\n");}#include<stdio.h>#include<stdlib.h>#include<string.h>int Myatoi(char str[]){int i,j;for (i=0,j=0;str[i]!='\0';i++){if (str[i] >='0'&& str[i]<='9'){str[j]=str[i]; j++;}}str[j]='\0';return atoi(str);}int main(){char s[7];printf("Input a string:");scanf("%7s", s);printf("%d", Myatoi(s));printf("\n");return 0;}#include <stdio.h>#include <stdlib.h>#include "string.h"int find(const char a[],const char b[]) {int i,j,flag;for(i=0;i<=strlen(a)-strlen(b);i++){if(a[i]==b[0]){flag=1;//printf("\n");for(j=1;j<strlen(b);j++){if(a[i+j]!=b[j])flag=0;}if(flag==1){break;}}}if(flag!=1)return -1;elsereturn i+1;}int main(){char a[100],b[100];int n;printf("Input a string:");gets(a);printf("Input another string:");gets(b);n=find(a,b);if(n!=-1)printf("Searching results:%d\n",n);elseprintf("Not found!\n");return 0;}#include<stdio.h>#include<string.h>int main(){char a[80];int b, i,j,t=1,tl,num=0;printf("Input a string:\n"); gets(a);for (i=0;i<strlen(a);i++){t=1;for (j=i+1;j<strlen(a);j++) {if (a[j]==a[i]){t++;}}if (i==0){tl=t;}else{if (t>tl){tl=t;num=i;}}}printf("%c:%d\n", a[num],tl); }#include<stdio.h>#include<string.h>int main(){printf("Input a string:");char save[2][100];int a, b, i, j;gets(save[0]);i=0;b=3;for (j = 0; j < strlen(save[0]); j++){if ((save[i][j] >= 'A'&& save[i][j] <= 'Z') || (save[i][j] >= 'a'&& save[i][j] <= 'z')) {save[i][j] += b;if (((save[i][j] >= 'A'&& save[i][j] <= 'Z') || (save[i][j] >= 'a'&& save[i][j] <= 'z')) == 0) {save[i][j] -= 26;}}} puts(save[0]); return (0); }#include <stdio.h>#include <string.h>int main(void){printf("Input M,T,U,F,D:");long int m, t, u, f, d;scanf("%ld%ld%ld%ld%ld", &m, &t, &u, &f, &d);printf("Input conditions of road:");char T[10000];int i, count = 1;for (i = 0; i < t; i++){scanf("%c", &T[i]);}long int realTime = m;i = 0;while (realTime > 0 && i < t){count++;switch (T[i++]){case'u':realTime -= (u + d);break;case'f':realTime -= (f + f);break;case'd':realTime -= (u + d);break;}if (realTime < 0){count--;}}printf("num=%ld\n", --count);return 0;}#include<stdio.h>#include<string.h>int main(){int n, i, j, k, o, e;printf("Input n:");scanf("%d", &n);printf("Input numbers:");char s[n], odd[n], even[n];for (i = 0, j = 0, k = 0; i < n; i++){scanf("%d", &s[i]);if (s[i] % 2 == 0) //even{even[k++] = s[i];e = k;}else{odd[j++] = s[i];o = j;}}even[e] = '\0'; odd[o] = '\0';for (i = 0; i < o; i++){if (i == 0){printf("%d", odd[i]);}else{printf(",%d", odd[i]);}}printf("\n");for (i = 0; i < e; i++){if (i == 0){printf("%d", even[i]);}else{printf(",%d", even[i]);}}return 0;}#include<stdio.h>#include<string.h>int main(){printf("Input the first string:"); char a[80],b[80];gets(a);if (strlen(a)!=1)printf("Input the second string:"); else{printf("Input a character:\n"); }gets(b);char *p=strstr(a,b);if (p){printf("Yes\n");}else{printf("No\n");}return 0;}#include <stdio.h>#include <string.h>int main(){char s[][10]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"}; char ss[10];int i;printf("Please enter a string:\n");gets(ss);for (i=0;i<=6;i++)if (strcmp(ss,s[i])==0){printf("%s is %d\n",ss,i);return 0;}printf("Not found!\n");return 0;}#include<stdio.h>typedef struct Mytime{int hour; int min; int sec;}T;int main(){T t1, t2, t3;int sec1=0, sec2=0, sec3=0;printf("Input time one:(hour，minute):");scanf("%d,%d", &t1.hour, &t1.min);printf("Input time two: (hour，minute):"); scanf("%d,%d", &t2.hour, &t2.min);sec1 = t1.hour * 3600 + t1.min * 60 + 0;sec2 = t2.hour * 3600 + t2.min * 60 + 0;if( sec1 >= sec2 )sec3 = sec1 - sec2;elsesec3 = sec2 - sec1;t3.hour = sec3 / 3600;sec3 %= 3600;t3.min = sec3 /60;t3.sec = sec3 %60;printf("%dhour,%dminute\n", t3.hour, t3.min); return 0;}#include<stdio.h>typedef struct winners{char name[20];int finalScore;int classScore;char work;char west;int paper;int scholarship;} WIN;int main(){printf("Input n:");int n,i;scanf("%d",&n);WIN stu[n];for (i=0;i<n;i++){printf("Input name:");scanf("%s",stu[i].name);printf("Input final score:");scanf("%d",&stu[i].finalScore);printf("Input class score:");scanf("%d",&stu[i].classScore);getchar();printf("Class cadre or not?(Y/N):");scanf("%c",&stu[i].work);getchar();printf("Students from the West or not?(Y/N):");scanf("%c",&stu[i].west);getchar();printf("Input the number of published papers:");scanf("%d",&stu[i].paper);stu[i].scholarship=0;if (stu[i].finalScore>80 && stu[i].paper >=1) stu[i].scholarship+=8000;if (stu[i].finalScore>85 && stu[i].classScore> 80) stu[i].scholarship+=4000;if (stu[i].finalScore>90) stu[i].scholarship+=2000;if (stu[i].finalScore>85 && stu[i].west=='Y') stu[i].scholarship+=1000;if (stu[i].classScore> 80 && stu[i].work=='Y') stu[i].scholarship+=850;printf("name:%s,scholarship:%d\n",stu[i].name,stu[i].scholarship);}int ts=stu[0].scholarship,k;for (i=1;i<n;i++){if (ts<stu[i].scholarship){k=i;}}printf("%s get the highest scholarship %d\n",stu[k].name,stu[k].scholarship); return 0;}#include <stdio.h>#include <stdlib.h>#include <string.h>#include <ctype.h>int main(){char c1,c2;printf("please input the first letter of someday:\n");scanf(" %c",&c1);c1= tolower(c1);switch(c1){case 'm':printf("monday\n");break;case 'w':printf("wednesday\n");break;case 'f':printf("friday\n");break;case 't':printf("please input second letter:\n");scanf(" %c",&c2);if (c2 =='u'){printf("tuesday\n");break;}else if (c2 == 'h'){printf("thursday\n");break;}else//没有这条语句就会在这种情况下执行下一个case中的前两条语句，导致多输出一个please input second letter:{printf("data error\n");break;}case 's':printf("please input second letter:\n");scanf(" %c",&c2);if (c2=='a'){printf("saturday\n");break;}else if (c2=='u'){printf("sunday\n");break;}else{printf("data error\n");break;}default :printf("data error\n");break;}return 0; }。
