Submission #1084774

#	Time	Username	Problem	Language	Result	Execution time	Memory
1084774		Izzy	Bosses (BOI16_bosses)	C++14	Compilation error	0 ms	0 KiB

bosses

#include <vector>
#include <algorithm>
#include <iostream>
#include <map>
using namespace std;
int n;
map<int, vector<int>> arr;
int test(int start) {
    vector<bool> visited(n, false);
    vector<vector<int>> levels = {{start}};
    int lvl = 0;
    int pos = 0;
    int salary = 0;
    visited[start] = true;
    while (lvl < levels.size()) {
        start = levels[lvl][pos];
        auto it = arr.find(start);
        if (it != arr.end()) {
            for (int i: arr[start]) {
                if (!visited[i]) {
                    visited[i] = true;
                    if (int(levels.size()) > lvl + 1) {
                        levels[lvl + 1].push_back(i); 
                    }
                    else {
                        levels.push_back({i});
                    }
                }
            }
        }
        pos++;
        if (pos == levels[lvl].size()) {
            salary += levels[lvl].size() * (lvl + 1);
            lvl++;
            pos = 0;
        }
    if (find(visited.begin(), visited.end(), false) != visited.end()) {
        return salary;
    }
    return 2147483646;
    }
}

int main() {
    int salary = 2147483646;
    cin >> n;
    for (int i = 0; i < n; i++) {
        int len;
        cin >> len;
        vector<int> temp;
        for (int j = 0; j < len; j++) {
            int x;
            cin >> x;
            x--;
            if (arr.find(x) == arr.end()) {
                arr[x] = {i};
            }
            else {
                arr[x].push_back(i);
            }
        }
    }
    for (i = 0; i < n; i++) {
        if (arr.find(i) != arr.end()) {
            int temp = test(i);
            if (temp > salary) {
                salary = temp;
            }
        }
    }
    cout << salary;
}

Compilation message (stderr)

bosses.cpp: In function 'int test(int)':
bosses.cpp:15:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     while (lvl < levels.size()) {
      |            ~~~~^~~~~~~~~~~~~~~
bosses.cpp:32:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |         if (pos == levels[lvl].size()) {
      |             ~~~~^~~~~~~~~~~~~~~~~~~~~
bosses.cpp: In function 'int main()':
bosses.cpp:63:10: error: 'i' was not declared in this scope
   63 |     for (i = 0; i < n; i++) {
      |          ^
bosses.cpp: In function 'int test(int)':
bosses.cpp:9:34: warning: control reaches end of non-void function [-Wreturn-type]
    9 |     vector<bool> visited(n, false);
      |                                  ^