Question

c语言编写程序求1.1+2.2+3.3+4.4+……+n.n的和（n是从键盘输入的整数）

Answer 1

#include <stdio.h>

long partOne(int n);
int partTwo(int n);

int main(void)
{
int n = 0;
printf("please input n = ");
scanf("%d", &n);

printf("result = %ld\n", partOne(n));
return 0;
}

long partOne(int n)
{
long result = 0L;
int i =0;

for(i = 1; i <= n; i++)
{
result += partTwo(i);
}

return result;
}

int partTwo(int n)
{
return (n * n);
}