Submission #1590941

---

Source Code Expand

#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
using namespace std;

int main(void) {
	long long int n;
	long long int pos = 0;
	cin >> n;
	FOR(i, 1, n) {
		if (i % 2 == 1) {
			pos += 3;
		}
		else {
			pos -= 2;
		}
	}
	cout << pos << endl;
	return 0;
}

Submission Info

Judge Result