int p();写在main()函数前面#include"stdio.h"int p(int n);void main(){ int j,s; for(s=0,j=1;jint p(int n);int main(void) {
int j;
int s;
for (s = 0, j = 1; j <= 5; j++)
{
.......
}
return 0;}int p(int n){
int k;
int t;
for (.....)
......
return t;}回答完毕,加分吧,呵呵