C语言：基本控制结构

计算题Time Limit: 1000MS Memory limit: 65536K题目描述一个简单的计算，你需要计算f(m,n)，其定义如下：当m=1时，f(m,n)=n；当n=1时，f(m,n)=m；当m>1,n>1时，f(m,n)= f(m-1,n)+ f(m,n-1)输入第一行包含一个整数T（1<=T<=100），表示下面的数据组数。

以下T行，其中每组数据有两个整数m，n（1<=m，n<=2000），中间用空格隔开。

输出对每组输入数据，你需要计算出f(m,n)，并输出。

每个结果占一行。

示例输入21 12 3示例输出17#include<stdio.h>int f(int m,int n){if(m==1) return n;else if(n==1) return m;else return f(m-1,n)+f(m,n-1);}void main(){int m,n,t,sum;scanf("%d",&t);while(t--){scanf("%d %d",&m,&n);sum=f(m,n);printf("%d\n",sum);}}简单计算Time Limit: 1000MS Memory limit: 65536K 题目描述接受从键盘输入的N个整数，输出其中的最大值、最小值和平均值。

输入第一行一个正整数N（N<=100）；第二行有N个用空格隔开的整数Ti (1<= i <=N, 0<= Ti <= 1000) ouput输出三个有空格隔开的整数分别为最大值、最小值和平均值。

示例输入51 2 3 5 4示例输出5 1 3#include<stdio.h>void main(){int n,a=0,b,i,j,t[100];scanf("%d",&n);for(i=0;i<=n-1;i++){scanf("%d",&t[i]);a+=t[i];}for(i=0;i<=n-2;i++){for(j=0;j<=n-i-2;j++){if(t[j]>t[j+1]){b=t[j];t[j]=t[j+1];t[j+1]=b;}}}printf("%d %d %d",t[n-1],t[0],a/n);}IBM Minus OneTime Limit: 1000MS Memory limit: 65536K题目描述You may have heard of the book '2001 - A Space Odyssey' by Arthur C. Clarke, or the film of the same name by Stanley Kubrick. In it a spaceship is sent from Earth to Saturn. The crew is put into stasis for the long flight, only two men are awake, and the ship is controlled by the intelligent computer HAL. But during the flight HAL is acting more and more strangely, and even starts to kill the crew on board. We don't tell you how the story ends, in case you want to read the book for yourself :-)After the movie was released and became very popular, there was some discussion as to what the name 'HAL' actually meant. Some thought that it might be an abbreviation for 'Heuristic ALgorithm'. But the most popular explanation is the following: if you replace every letter in the word HAL by its successor in the alphabet, you get ... IBM.Perhaps there are even more acronyms related in this strange way! You are to write a program that may help to find this out.输入The input starts with the integer n on a line by itself - this is the number of strings to follow. The following n lines each contain one string of at most 50 upper-case letters.输出For each string in the input, first output the number of the string, as shown in the sample output. The print the string start is derived from the input string by replacing every time by the following letter in the alphabet, and replacing 'Z' by 'A'.Print a blank line after each test case.示例输入2HALSWERC示例输出String #1IBMString #2TXFSD#include<stdio.h>#include<string.h>void main(){char s[50];int i,a,b,k=1;scanf("%d",&b);while(b--){scanf("%s",&s);a=strlen(s);printf("String #%d\n",k);for(i=0;i<a;i++){if(s[i]>='A'&&s[i]<='Y')printf("%c",s[i]+1);else if(s[i]=='Z')printf("%c",s[i]-25);}printf("\n\n");k++;}}No BrainerTime Limit: 1000MS Memory limit: 65536K题目描述Zombies love to eat brains. Yum.输入The first line contains a single integer n indicating the number of data sets.The following n lines each represent a data set. Each data set will be formatted according to the following description:A single data set consists of a line "X Y", where X is the number of brains the zombie eats and Y is the number of brains the zombie requires to stay alive.输出For each data set, there will be exactly one line of output. This line will be "MMM BRAINS" if the number of brains the zombie eats is greater than or equal to thenumber of brains the zombie requires to stay alive. Otherwise, the line will be "NO BRAINS".示例输入34 53 34 3示例输出NO BRAINSMMM BRAINSMMM BRAINS#include<stdio.h>void main(){int n,i,k;scanf("%d",&n);while(n--){scanf("%d%d",&i,&k);if(i<k) printf("NO BRAINS\n");else if(i>=k) printf("MMM BRAINS\n");}}C语言实验——交换两个整数的值（顺序结构）Time Limit: 1000MS Memory limit: 65536K题目描述交换两个变量的值，由终端输入两个整数给变量x、y，然后交换x和y的值后，输出x和y。

输入从键盘输入两个整数变量x和y；输出在交换x、y的值后将x和y输出！示例输入4 6示例输出6 4#include<stdio.h>void main(){int x,y,t;scanf("%d %d",&x,&y);t=x;x=y;y=t;printf("%d %d\n",x,y);}C语言实验——转换字母（顺序结构）Time Limit: 1000MS Memory limit: 65536K题目描述从键盘上输入一个小写字母，然后将小写字母装换成大写字母输出！输入从键盘上输入一个小写字母。