OlympiadCode/luogu_c/P1035.c

/*
 * P1035.c
 * 
 * Copyright 2022 Áº¿¡Ó <2251250136@qq.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 * 
 */


#include<stdio.h>
int main(){
	int k,n;
	double sn=0.0;
	scanf("%d",&k);
	for(n=1;;n++){
	 sn+=1.0/n;
	 if(sn>k*1.0)
	  break;
    }
	printf("%d",n);
	return 0;
}