Submission #1036481

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036481		VMaksimoski008	Linear Garden (IOI08_linear_garden)	C++17	24 / 100	1582 ms	5220 KiB

linear_garden

#include <bits/stdc++.h>

#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
//#define int long long

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;

ll n, m, ans = 0;
string s;

signed main() {
    cin >> n >> m >> s;
    for(int i=0; i<n; i++) s[i] = (s[i] == 'P' ? '1' : '0');
    
    vector<string> vec;
    for(int s=0; s<(1<<n); s++) {
        string t = "";
        for(int i=0; i<n; i++) {
            if(s & (1 << i)) t += '1';
            else t += '0';
        }

        bool ok = 1;
        for(int i=0; i<n&&ok; i++) {
            int cnt = 0;
            for(int j=i; j<n&&ok; j++) {
                if(t[j] == '1') cnt++;
                else cnt--;

                if(cnt > 2 || cnt < -2)  ok = 0;
            }
        }

        if(ok) vec.push_back(t);
    }

    sort(vec.begin(), vec.end());

    for(int i=0; i<vec.size(); i++) {
        if(vec[i] == s) {
            cout << (i + 1) % m << '\n';
            return 0;
        }
    }

    return 0;
}

Compilation message (stderr)

linear_garden.cpp: In function 'int main()':
linear_garden.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for(int i=0; i<vec.size(); i++) {
      |                  ~^~~~~~~~~~~

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