Submission #1059645

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059645		KasymK	Pairs (IOI07_pairs)	C++17	30 / 100	17 ms	1812 KiB

pairs

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second	
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}

int main(){
    int b, n, d, m;
    scanf("%d%d%d%d", &b, &n, &d, &m);
    if(b == 1){
        vector<int> v;
        for(int i = 1; i <= n; ++i){
            int x;
            scanf("%d", &x);
            v.pb(x);
        }
        sort(all(v));
        ll answer = 0;
        for(auto I = v.begin(); I != v.end(); ++I){
            int x = *I;
            auto it = upper_bound(all(v), x-d-1);
            answer += (I-it);
        }
        printf("%lld\n", answer);
    }
    return 0;
}

Compilation message (stderr)

pairs.cpp: In function 'int main()':
pairs.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d%d%d%d", &b, &n, &d, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pairs.cpp:20:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |             scanf("%d", &x);
      |             ~~~~~^~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 6 / 6
• Subtask 3: 6 / 6
• Subtask 4: 6 / 6
• Subtask 5: 6 / 6
• Subtask 6: 0 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8
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• Subtask 10: 0 / 10
• Subtask 11: 0 / 10
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• Subtask 13: 0 / 10