oj.uz

Submission #147628

# Submission time Handle Problem Language Result Execution time Memory
147628 2019-08-30T10:27:32 Z JovanK26 Ljetopica (COI19_ljetopica) C++14
0 / 100
 500 ms 4908 KB 
#include <iostream>

using namespace std;
long long n,k;
string path;
string a;
string b;
long long aval=0;
long long bval=0;
long long rez=0;
bool vis[1000000007];
void solve(long long start,long long k,long long n,bool chk)
{
    if(n==path.size())
    {
        if(!vis[start] && start>=aval && start<=bval)
        {
            rez+=start;
            rez%=1000000007;
            vis[start]=1;
            //cout << start << endl;
        }
        return;
    }
    if(k==0)
    {
        if(!chk)
        {
            if(path[n]=='L')solve(2*start,k,n+1,chk);
            else
            {
                solve(2*start+1,k,n+1,chk);
            }
        }
        else
        {
            if(path[n]=='R')solve(2*start,k,n+1,chk);
            else
            {
                solve(2*start+1,k,n+1,chk);
            }
        }

    }
    else
    {
        if(!chk)
        {
            solve(2*start,k,n+1,chk);
            solve(2*start+1,k-1,n+1,chk^1);
        }
        else
        {
            solve(2*start+1,k,n+1,chk);
            solve(2*start,k-1,n+1,chk^1);
        }
    }
}
int main()
{
    cin >> n >> k;
    cin >> path;
    cin >> a;
    cin >> b;
    long long br=0;
    for(long long i=a.size()-1;i>=0;i--)
    {
        if(a[i]=='1')aval+=(1<<br);
        br++;
    }
    br=0;
    for(long long i=b.size()-1;i>=0;i--)
    {
        if(b[i]=='1')bval+=(1<<br);
        br++;
    }
       solve(1,k,0,0);
       solve(1,k,0,1);
       cout << rez;
    return 0;
}

Compilation message

ljetopica.cpp: In function 'void solve(long long int, long long int, long long int, bool)':
ljetopica.cpp:14:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(n==path.size())
        ~^~~~~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 49 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 35 ms 4908 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1072 ms 928 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 49 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -