Submission #1059638

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059638		KasymK	Pairs (IOI07_pairs)	C++17	Compilation error	0 ms	0 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));
        int answer = 0;
        for(auto I = v.begin(); I != v.end(); ++I){
            int x = *I;
            auto it = upper_bound(all(v), x-d-1);
            cnt += (I-it);
        }
        printf("%d\n", answer);
    }
    // else if(b == 2){
    //     auto get = [&](pair<int, int> A, pair<int, int> B) -> int {
    //         int a = A.ff, b = A.ss;
    //         int c = B.ff, d = B.ss;
    //         return (abs(a-c)+abs(b-d));
    //     };
    //     vector<pii> v;
    //     for(int i = 1; i <= n; ++i){
    //         int a, b;
    //         scanf("%d%d", &a, &b);
    //         v.pb({a, b});
    //     }
    //     int answer = 0;
    //     for(int i = 0; i < n; ++i)
    //         for(int j = i+1; j < n; ++j)
    //             if(get(v[i], v[j]) <= d)
    //                 answer++;
    //     printf("%d\n", answer);
    // }
    // else{
    //     auto get = [&](tuple<int, int, int> A, tuple<int, int, int> B) -> int {
    //         int a, b, c, x, y, z;
    //         tie(a, b, c) = A;
    //         tie(x, y, z) = B;
    //         return (abs(a-x)+abs(b-y)+abs(c-z));
    //     };
    //     vector<tuple<int, int, int>> v;
    //     for(int i = 1; i <= n; ++i){
    //         int a, b, c;
    //         scanf("%d%d%d", &a, &b, &c);
    //         v.pb({a, b, c});
    //     }
    //     int answer = 0;
    //     for(int i = 0; i < n; ++i)
    //         for(int j = i+1; j < n; ++j)
    //             if(get(v[i], v[j]) <= d)
    //                 answer++;
    //     printf("%d\n", answer);
    // }
    return 0;
}

Compilation message (stderr)

pairs.cpp: In function 'int main()':
pairs.cpp:28:13: error: 'cnt' was not declared in this scope; did you mean 'int'?
   28 |             cnt += (I-it);
      |             ^~~
      |             int
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);
      |             ~~~~~^~~~~~~~~~