Submission #523442

#	Time	Username	Problem	Language	Result	Execution time	Memory
523442		fatemetmhr	Inside information (BOI21_servers)	C++17	5 / 100	114 ms	41240 KiB

servers

// Be name khoda! //
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int maxn5 = 5e3 + 10;
const int lg    = 20;

#define pb    push_back

bool have[maxn5][maxn5];
int ans[maxn5];


int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	
	int n, q; cin >> n >> q;
	for(int i = 0; i < n; i++)
		have[i][i] = ans[i] = true;
	for(int i = 0; i < n + q - 1; i++){
		char ty; cin >> ty;
		if(ty == 'S'){
			int a, b; cin >> a >> b;
			a--; b--;
			for(int i = 0; i < n; i++){
				ans[i] += (!have[a][i]) + (!have[b][i]);
				have[a][i] |= have[b][i];
				have[b][i] |= have[a][i];
				ans[i] -= (!have[a][i]) + (!have[b][i]);
			}
		}
		if(ty == 'Q'){
			int a, b; cin >> a >> b;
			a--; b--;
			if(have[a][b])
				cout << "yes\n";
			else
				cout << "no\n";
		}
		if(ty == 'C'){
			int d; cin >> d;
			cout << ans[--d] << '\n';
		}
	}
}

Compilation message (stderr)

servers.cpp: In function 'int main()':
servers.cpp:22:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   22 |   have[i][i] = ans[i] = true;
      |                ~~~~~~~^~~~~~

• Subtask 1: 2.5 / 2.5
• Subtask 2: 2.5 / 2.5
• Subtask 3: 0 / 2.5
• Subtask 4: 0 / 2.5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 12.5
• Subtask 10: 0 / 12.5
• Subtask 11: 0 / 17.5
• Subtask 12: 0 / 17.5