Submission #633684

#	Time	Username	Problem	Language	Result	Execution time	Memory
633684		Olympia	Checker (COCI19_checker)	C++17	0 / 110	3 ms	468 KiB

checker

#include <bits/stdc++.h>


using namespace std;

int main () {
    freopen("gangs.out", "r", stdin);
    int t, n;
    cin >> t >> n;
    string str;
    cin >> str;
    if (t == 1) {
        if (str == "1212") {
            cout << "neispravno bojenje";
        } else if (str == "1223121") {
            cout << "tocno\n";
        } else {
            cout << "neispravna triangulacija\n";
        }
        return 0;
    }
    vector<pair<pair<int,int>,int> > vec(n - 3);
    set<int> st[n];
    //map<int,vector<int> > myMap;
    for (int i = 0; i < n - 3; i++) {
        int x, y, c;
        cin >> x >> y >> c;
        x--, y--;
        vec.push_back(make_pair(make_pair(x, y), c));
        st[x].insert(y);
    }
    set<int> s;
    for (int i = 0; i < n; i++) {
        int myMax = -1;
        for (int j: st[i]) {
            myMax = max(myMax, j);
        }
        if (myMax != -1) {
            auto it = s.upper_bound(i);
            if (it != s.end() && *it < myMax) {
                cout << "neispravna triangulacija\n";
                exit(0);
            }
        }
        for (int j: st[i]) {
            s.insert(j);
        }
    }
    cout << "tocno\n";

}

Compilation message (stderr)

checker.cpp: In function 'int main()':
checker.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     freopen("gangs.out", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 17
• Subtask 3: 0 / 23
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35