Submission #2869862

---

Source Code Expand

#include<bits/stdc++.h>
using namespace std;

int main(){
	int n;
	cin >> n;
	int ans = 0;
	for(int i = 0; i < n; i++){
		int l, r;
		cin >> l >> r;
		ans += r - l + 1;
	}

	cout << ans << endl;

	return 0;
}

Submission Info

Judge Result