Submission #2233782

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Source Code Expand

#include "bits/stdc++.h"
using namespace std;
#define FOR(i,a,b) for(int i =(a);i<(b);i++)
#define REP(i,n) for(int i=0;i<(n);i++)
#define REPm(i,n) for(int i=(n)-1;i>=0;i--)
#define REP1(i,n) for(int i=1;i<=(n);i++)
typedef long long ll;

int main(){
    int N;
    cin >> N;
    int ans = 0;
    REP(i,N){
        int l,r;
        cin >> l >> r;
        ans += r-l+1;
    }
    cout << ans << endl;
    return 0;
}

Submission Info

Judge Result