Submission #746800

#	Time	Username	Problem	Language	Result	Execution time	Memory
746800		anusha777	Inside information (BOI21_servers)	C++14	5 / 100	251 ms	32320 KiB

servers

#include <bits/stdc++.h>
#define fast 			ios::sync_with_stdio(0); cin.tie(NULL);cout.tie(NULL)
#define sz(x)			(int)((x).size())
#define pb				push_back
#define vi				vector<int>
#define vb				vector<bool>
#define vvb				vector<vb>
#define pi				pair<int,int>
#define vpi				vector<pi>
#define vvi				vector<vi>
#define vc				vector<char>
#define all(x)			x.begin(), x.end()
#define rall(x)			x.rbegin(), x.rend()
#define pbb()			pop_back()
#define f				first
#define s				second
#define ll				long long
#define int				long long
#define ull				unsigned long long
#define forr(i, a, b)	for(int i=a; i<b; i++)
const int N=4000+1, mod=1e9 + 9, inf=1e27+1;
using namespace std;
//vi dx= { 0, 1, 0 , -1} , dy= {-1,0, 1, 0};
int cnt[N];
bool dp[N][N];
void task()
{
    int n, k;
    cin>>n>>k;
    forr(i, 1, n+1)
    {
        cnt[i]=1;
        forr(j, 0, n+1) dp[i][j]=0;
        dp[i][i]=1;
    }
    forr(i, 0, n+k-1)
    {
        char ch;
        int a, b;
        cin>>ch;
        if(ch=='S')
        {
            cin>>a>>b;
            forr(i, 1, n+1)
            {
                if(dp[a][i] and !dp[b][i])
                {
                    cnt[i]++;
                    dp[b][i]=1;
                }
                swap(a,b);
                if(dp[a][i] and !dp[b][i])
                {
                    cnt[i]++;
                    dp[b][i]=1;
                }
            }
        }
        else if(ch=='Q')
        {
            cin>>a>>b;
            if(dp[a][b]) cout<<"yes"<<endl;
            else cout<<"no"<<endl;
        }
        else{
            cin>>a;
            cout<<cnt[a]<<endl;
        }
    }
}
signed main()
{
	fast;
	int t;
	t=1;
	//cin>>t;
	while(t--) task();
}

Compilation message (stderr)

servers.cpp:21:42: warning: overflow in conversion from 'double' to 'long long int' changes value from '1.0e+27' to '9223372036854775807' [-Woverflow]
   21 | const int N=4000+1, mod=1e9 + 9, inf=1e27+1;
      |                                      ~~~~^~

• 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