Submission #894368

#	Time	Username	Problem	Language	Result	Execution time	Memory
894368		Trisanu_Das	Keys (IOI21_keys)	C++17	Compilation error	0 ms	0 KiB

keys

#include<bits/stdc++.h>
using namespace std;
 
vector<int> find_reachable(vector<int> r, vector<int> u, vector<int> v, vector<int> c) {
    int n = r.size();
	vector<int> ans(n, 0);
    vector<bool> vi(n, 0), <bool> keys(n, 0);
    int m = n;
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < n; j++) vi[j] = 0, keys[j] = 0;
        vi[i] = 1;
        keys[r[i]] = 1;
        for(int k = 0; k < n; k++) {
            for(int j = 0; j < u.size(); j++) {
              if(keys[c[j]]){
                  if(vi[u[j]]) vi[v[j]] = 1, keys[r[v[j]]] = 1;
                  if(vi[v[j]]) vi[u[j]] = 1, keys[r[u[j]]] = 1;
              }
            }
        }
        int c = 0;
        for(int j = 0; j < n; j++) if(vi[j]) c++;
        m = min(c, m);
        ans[i] = c;
    }
    for(int i = 0; i < n; i++) ans[i] = ans[i] == m ? 1 : 0;
	return ans;
}

Compilation message (stderr)

keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:7:28: error: expected unqualified-id before '<' token
    7 |     vector<bool> vi(n, 0), <bool> keys(n, 0);
      |                            ^
keys.cpp:10:47: error: 'keys' was not declared in this scope
   10 |         for(int j = 0; j < n; j++) vi[j] = 0, keys[j] = 0;
      |                                               ^~~~
keys.cpp:12:9: error: 'keys' was not declared in this scope
   12 |         keys[r[i]] = 1;
      |         ^~~~
keys.cpp:14:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |             for(int j = 0; j < u.size(); j++) {
      |                            ~~^~~~~~~~~~