Submission #2867129

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Source Code Expand

#include <algorithm>
#include <cassert>
// #include <chrono>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
// #include <random>
#include <set>
#include <stack>
#include <string>
#include <utility>
#include <vector>

/*
unsigned seed1 = std::chrono::system_clock::now().time_since_epoch().count();
mt19937 g1.seed(seed1);
*/
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<pii, pii> ppiipii;
typedef pair<int, ppiipii> pippiipii;
typedef pair<int, pii> pipii;
typedef pair<pii, int> ppiii;
typedef pair<int, ppiii> pippiii;
typedef pair<int, ll> pill;
typedef pair<int, double> pid;
typedef pair<string, string> pss;
// note to self, the below two triggers someone
typedef pair<ll, ll> pll;
typedef pair<ll, int> plli;
typedef long double ld;

int main() {
  int n;
  scanf("%d", &n);
  int r = 0;
  while(n--) {
    int a, b;
    scanf("%d%d", &a, &b);
    r += b-a+1;
  }
  printf("%d\n", r);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:45:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:49:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &a, &b);
                          ^

Judge Result