이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
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#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std;
void solve(){
    ll k;
    cin >> k;
    ll kel = 0;
    vector<pair<int, int>> edge;
    int cur = 2;
    for(ll i = 1; i <= abs(k) + 1; i++){
        edge.push_back({1, cur++});
    }
    if(k < 0){
        for(int i = 2; i < cur; i++){
            edge.push_back({i, cur});
            edge.push_back({i, cur + 1});
        }
        edge.push_back({cur, cur + 2});
        edge.push_back({cur + 1, cur + 2});
        cur = cur + 2;
    }else{
        for(int i = 2; i < cur; i++){
            edge.push_back({i, cur});
        }
        cur;
    }
    cout << cur << " " << edge.size() << endl;
    for(int i = 0; i < edge.size(); i++){
        cout << edge[i].fi << " " << edge[i].se << endl; 
    }
    
    
    
    
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    int t = 1;
    while(t--){
        solve();
    }
    return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
konstrukcija.cpp: In function 'void solve()':
konstrukcija.cpp:39:9: warning: statement has no effect [-Wunused-value]
   39 |         cur;
      |         ^~~
konstrukcija.cpp:42:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i = 0; i < edge.size(); i++){
      |                    ~~^~~~~~~~~~~~~
konstrukcija.cpp:21:8: warning: unused variable 'kel' [-Wunused-variable]
   21 |     ll kel = 0;
      |        ^~~| # | Verdict  | Execution time | Memory | Grader output | 
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