Submission #1040002

#	Time	Username	Problem	Language	Result	Execution time	Memory
1040002		LaMatematica14	Split the Attractions (IOI19_split)	C++17	0 / 100	1 ms	436 KiB

split

#include <bits/stdc++.h>
using namespace std;

vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
    vector<int> g(n, 3);
    vector<vector<int>> adj(n);
    for (int i = 0; i < p.size(); i++) {
        adj[p[i]].push_back(q[i]); adj[q[i]].push_back(p[i]);
    }
    queue<int> nx;
    nx.push(0); g[0] = 2;
    while (!nx.empty()) {
        int att = nx.front(); nx.pop();
        for (int i : adj[att]) {
            if (b == 0) break;
            if (g[i] == 2) continue;
            nx.push(i);
            g[i] = 2;
            b--;
        }
        if (b == 0) break;
    }
    for (int i = 0; i < n; i++) {
        if (g[i] == 3) {
            g[i] = 1; break;
        }
    }
    return g;
}

Compilation message (stderr)

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:7:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for (int i = 0; i < p.size(); i++) {
      |                     ~~^~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 24
• Subtask 5: 0 / 36