oj.uz

Submission #646933

# Submission time Handle Problem Language Result Execution time Memory
646933 2022-10-01T07:42:51 Z GudStonks Kamenčići (COCI21_kamencici) C++17
30 / 70
 1000 ms 300 KB 
#include<bits/stdc++.h>
using namespace std;
int n, k;
string s;
bool fun(int l = 0, int r = n - 1, int a = 0, int b = 0)
{
    if(a == k || b == k)
        return b == k;
    if(!(n - (r - l + 1) & 1))
    {
        return fun(l + 1, r, a + (s[l] == 'C'), b) || fun(l, r - 1, a + (s[r] == 'C'), b);
    }
    else
    {
        return !(!fun(l + 1, r, a, b + (s[l] == 'C')) || !fun(l, r - 1, a, b + (s[r] == 'C')));
    }
}
int main()
{
    cin>>n>>k;
    cin>>s;
    cout<<(fun() ? "DA" : "NE");
}

Compilation message

Main.cpp: In function 'bool fun(int, int, int, int)':
Main.cpp:9:12: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
    9 |     if(!(n - (r - l + 1) & 1))
      |          ~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 296 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 4 ms 300 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 310 ms 280 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 4 ms 300 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 310 ms 280 KB Output is correct
13 Correct 965 ms 276 KB Output is correct
14 Execution timed out 1091 ms 212 KB Time limit exceeded
15 Halted 0 ms 0 KB -