题解 | #数列的和#
数列的和
https://www.nowcoder.com/practice/fe19f8a78a5148018f4be53ae9b5e11e
#include <stdio.h>
#include <math.h>
int main() {
int a, b;
while (scanf("%d %d", &a, &b) != EOF) { // 注意 while 处理多个 case
double sum = 0.0;
double n = a;
for (int i = 1; i <= b; i++)
{
sum += n;
n = sqrt(n);
}
printf("%.02lf\n", sum);
}
return 0;
}
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