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Submission #903613

# Submission time Handle Problem Language Result Execution time Memory
903613 2024-01-11T10:14:14 Z Tenis0206 Street Lamps (APIO19_street_lamps) C++11
0 / 100
 1 ms 600 KB 
#include <bits/stdc++.h>

using namespace std;

int n,q;

int main()
{
    freopen("nr.in","r",stdin);
    freopen("nr.out","w",stdout);
    srand(time(NULL));
    cin>>n>>q;
    cout<<n<<' '<<q<<'\n';
    for(int i=1;i<=n;i++)
    {
        cout<<rand() % 2;
    }
    cout<<'\n';
    for(int i=1;i<=n;i++)
    {
        int tip = rand() % 2;
        if(tip == 0)
        {
            cout<<"toggle ";
            cout<<1 + rand() % n<<'\n';
        }
        else
        {
            cout<<"query ";
            int st = 1 + rand() % (n + 1);
            int dr = 1 + rand() % (n + 1);
            while(st == dr)
            {
                st = 1 + rand() % (n + 1);
                dr = 1 + rand() % (n + 1);
            }
            if(st > dr)
            {
                swap(st,dr);
            }
            cout<<st<<' '<<dr<<'\n';
        }
    }
    return 0;
}

Compilation message

street_lamps.cpp: In function 'int main()':
street_lamps.cpp:9:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     freopen("nr.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
street_lamps.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("nr.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 600 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -