#include<stdio.h>intmain(){int mynumber =38;int yournumber;printf("please input your number:");scanf("%d",&yournumber);if(yournumber == mynumber){printf("You are right\n");}elseif(yournumber > mynumber){printf("Your number is bigger than my number!");}else{printf("Your number is smaller than my number!");}return0;}
输入一个整数,判断该数是奇数还是偶数。
#include<stdio.h>intmain(){int number;printf("Enter a number:");scanf("%d",&number);if(number %2==0){printf("This is a even.\n");//除以2余数是0为偶数}else{printf("This is a odd.\n");//除以2余数不是0为奇数}return0;}
输入一个正整数n,再输入n个学生的成绩,计算平均分,并统计不及格学生的人数。
#include<stdio.h>intmain(){int count, i, n;double grade, total;printf("Enter n:");scanf("%d",&n);
total =0;
count =0;for(i =1; i <= n; i++){printf("Enter grade #%d:", i);//提示输入第一个成绩scanf("%lf",&grade);//输入第一个成绩
total = total + grade;//累加成绩if(grade <60)//判断成绩是否及格{
count++;}}printf("grade average =%.2f\n", total / n);printf("number of failure =%d\n", count);return0;}
#include<stdio.h>intmain(){int n, i, count;double total, grade;printf("Enter n:");scanf("%d",&n);
total =0;
count =0;for(i =1; i <= n; i++){printf("Enter grade #%d:", i);scanf("%lf",&grade);
total = total + grade;if(grade >=60){
count++;}}printf("The average =%.2f\n", total / n);printf("The win=%d\n", count);return0;}