oj.uz

Submission #902613

# Submission time Handle Problem Language Result Execution time Memory
902613 2024-01-10T20:32:28 Z simona1230 Inside information (BOI21_servers) C++17
0 / 100
 177 ms 2936 KB 
#include <bits/stdc++.h>

using namespace std;

int n,k;
int in[4001][4001];

void slow()
{
    for(int i=1;i<=n;i++)
        in[i][i]=1;
    for(int i=1;i<=n+k-1;i++)
    {
        char c;
        cin>>c;
        int x,y;
        if(c=='S')
        {
            cin>>x>>y;
            for(int j=1;j<=n;j++)
            {
                in[x][j]=in[y][j]=max(in[x][j],in[y][j]);
            }
        }
        if(c=='C')
        {
            cin>>x;
            int cnt=0;
            for(int j=1;j<=n;j++)
                cnt+=in[j][x];
            cout<<cnt<<endl;
        }
        if(c=='Q')
        {
            cin>>x>>y;
            if(in[x][y])cout<<"yes"<<endl;
            else cout<<"no"<<endl;
        }
    }
}


int t[120001];
void subt2()
{
    t[1]=1;
    int sec=1;
    for(int i=1;i<=n+k-1;i++)
    {
        char c;
        cin>>c;

        if(c=='S')
        {
            int x,y;
            cin>>x>>y;

            t[max(x,y)]=sec++;
        }

        if(c=='Q')
        {
            int x,y;
            cin>>x>>y;

            if(t[y]&&t[y]<t[x]||x==1&&t[y]||y==1&&t[x])cout<<"yes"<<endl;
            else cout<<"no"<<endl;
        }

        if(c=='C')
        {
            int x;
            cin>>x;

            if(t[x]==0)cout<<1<<endl;
            else cout<<sec-t[x]+1<<endl;
        }
    }
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);

	cin>>n>>k;
	/*if(n<=4000)slow();
    else */subt2();

	return 0;
}

Compilation message

servers.cpp: In function 'void subt2()':
servers.cpp:66:20: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   66 |             if(t[y]&&t[y]<t[x]||x==1&&t[y]||y==1&&t[x])cout<<"yes"<<endl;
      |                ~~~~^~~~~~~~~~~
servers.cpp:66:49: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   66 |             if(t[y]&&t[y]<t[x]||x==1&&t[y]||y==1&&t[x])cout<<"yes"<<endl;
      |                                             ~~~~^~~~~~

Subtask #1
0 / 2.5

# Verdict Execution time Memory Grader output
1 Incorrect 146 ms 660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 2.5

# Verdict Execution time Memory Grader output
1 Incorrect 146 ms 660 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 2.5

# Verdict Execution time Memory Grader output
1 Correct 151 ms 872 KB Output is correct
2 Incorrect 177 ms 2936 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 2.5

# Verdict Execution time Memory Grader output
1 Correct 151 ms 872 KB Output is correct
2 Incorrect 177 ms 2936 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 158 ms 812 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 158 ms 812 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 164 ms 592 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 164 ms 592 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 12.5

# Verdict Execution time Memory Grader output
1 Incorrect 174 ms 728 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 12.5

# Verdict Execution time Memory Grader output
1 Incorrect 174 ms 728 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 17.5

# Verdict Execution time Memory Grader output
1 Incorrect 148 ms 1008 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 17.5

# Verdict Execution time Memory Grader output
1 Incorrect 148 ms 1008 KB Output isn't correct
2 Halted 0 ms 0 KB -