Submission

[PPPP-SSSSS][-SSSS]

Score: 0

User: KuyHeeTad

Problemset: ขนมของเซ้น143 (v.ยาก)

Language: c

Time: 0.001 second

Submitted On: 2024-10-03 09:13:24

#include <stdio.h>

int main() {
	long long int num, i;
	scanf("%lld", &num);
	long long int s=9000000000;
	
	for (i = 1;i<num;i++){
		long long int d = ((1+(num - i))*((num - i))/2)-(((2*num)+1-i)*i/2);
		if( d < 0){
			d = -d;
		}
		if (d < s){
			s = d;
			
		}
		else{ break;
		} 
		
		
	}
	
	
	printf("%lld", s);
}