题解 | 牛牛学数列4
牛牛学数列4
https://www.nowcoder.com/practice/586b114f52034688879342ba45779081
#include<stdio.h>
int main() {
int x;
int n;
int a = 0;
int c = 0;
scanf_s("%d", &n);
for (x = 1; x < n + 1; x++) {
a += x;
c += a ;
}
printf("%d", c);
return 0;
}
11-18 21:05 C++ 发布于湖南
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