Submission #1056365

#	Time	Username	Problem	Language	Result	Execution time	Memory
1056365		vjudge1	Thousands Islands (IOI22_islands)	C++17	0 / 100	14 ms	3164 KiB

islands

#include "islands.h"

#include <variant>
#include <vector>
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;

variant<bool, vi> find_journey(int n, int m, vi U, vi V) {
    vi InDeg(n, 0), OutDeg(n, 0);
    for(int i = 0; i < m; ++i) {
        ++OutDeg[U[i]];
        ++InDeg[V[i]];
    }
    bool ok = true;
    ok &= (OutDeg[0] > 1);
    int nr = 0;
    for(int i = 1; i < n; ++i) {
        if(!InDeg[i] || !OutDeg[i]) ++nr;
    }
    ok &= (nr != 0);
    return ok;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45