Start: Jul, 10, 2019 08:30:00
2019年度暑期短学期达标测试补考
End: Jul, 10, 2019 11:30:00
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Problem_ID: D
Result: Accepted
Time: 3ms
Memory: 1120kB
Author: 2017211401082
In contest: 1284

#include<stdio.h>
#include<math.h>

int main(){
	double a;
	scanf("%lf", &a);
	printf("%.0f\n", floor(a));
}