#include <stdio.h> int main(void) { int i, n,m; int a, b, c; a = b = c = 0; printf("Enter m:");/*输入n个人成绩*/ scanf_s("%d",&m); for(i=0;i<m;i++)/*循环判断m个成绩*/ { scanf_s("%d", &n);/*读取成绩*/ if(n<=0) break;/*如果n<=0结束循环*/ else if(n>=85)/*判断成绩的大小*/ a++; else if((n>=60)&&(n<84)) b++; else c++; } printf("a :%d, b :%d, c: %d ", a, b, c);/*输出个数*/ return 0; }