洛谷【4】P1035 [NOIP2002 普及组] 级数求和

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
  double sn=0,k,t;
  int n;
  scanf("%lf", &k);
  for (n = 1; sn <k; n++)
  {
    t = (1.0) / n;
    sn =sn+t;
  }
  printf("%d", n);
  return 0;
}

#include<cstdio>
#include<cmath>
const double gamma=0.5772156649;
int main() {
    int k,n;
    scanf("%d",&k);
    n=exp(k-gamma)+0.5;
    printf("%d",n);
    return 0;
}