Submission #685893

#	Time	Username	Problem	Language	Result	Execution time	Memory
685893		Alihan_8	Table Tennis (info1cup20_tabletennis)	C++17	Compilation error	0 ms	0 KiB

tabletennis

#include <bits/stdc++.h>
// include <ext/pb_ds/assoc_container.hpp>
// include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
// define ordered_set tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update>
#define mpr make pair
#define ln '\n'
void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define int long long
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, k; cin >> n >> k;
    vector <int> p(n+k);
    for ( auto &i: p ) cin >> i;
    int cnt = accumulate(all(p), 0ll);
    map <int,int> mp;
    for ( auto i: p ) mp[i]++;
    int res = -1;
    for ( int i = 0; i < n+k; i++ ){
        mp[p[i]]--;
        int cur = (cnt-p[i]), team = n/2;
        if ( cur%team ) continue;
        bool flag = true;
        for ( int j = 0; j < n+k; j++ ){
            if ( i == j ) continue;
            int val = cur/team-p[j];
            if ( !mp.count(val) ){
                flag = false;
                break;
            }
            if ( --mp[val] == 0 ) mp.erase(val);
        }
        if ( flag ) res = i+1;
        mp.clear();
        for ( auto j: p ) mp[j]++;
    }
    for ( int i = 1; i <= n+k; i++ ){
        if ( i != res ) cout << i << ' ';4 
    }

    cout << '\n';
}

Compilation message (stderr)

tabletennis.cpp: In function 'int main()':
tabletennis.cpp:43:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   43 |         if ( i != res ) cout << i << ' ';4
      |         ^~
tabletennis.cpp:43:42: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   43 |         if ( i != res ) cout << i << ' ';4
      |                                          ^
tabletennis.cpp:43:43: error: expected ';' before '}' token
   43 |         if ( i != res ) cout << i << ' ';4
      |                                           ^
      |                                           ;
   44 |     }
      |     ~                                      
tabletennis.cpp:43:42: warning: statement has no effect [-Wunused-value]
   43 |         if ( i != res ) cout << i << ' ';4
      |                                          ^
tabletennis.cpp: In function 'void IO(std::string)':
tabletennis.cpp:11:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tabletennis.cpp:11:70: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 | void IO(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~