Submission #1107333

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107333		vjudge1	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++17	0 / 100	1129 ms	1048576 KiB

joi2019_ho_t3

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define nn "\n";
#define pb push_back
#define all(v) (v).begin() , (v).end()
const int N = 2e4+ 4;
int n , T , q , m ;
signed main(){
    cin>> n ;
    string s ;
    cin>> s ;
    int ko =0 ;
    for(int i=0 ; i < s.size() - 1; i++){
        if(s[i]==s[i+1])ko = 1;
    }
    if(!ko){
            cout << 0 ;
            return 0 ;
    }
    queue<pair<string , int >>q;
    q.push({s , 0 });
    while(q.size()){
        string v = q.front().first;
        int c = q.front().second;
        q.pop();
        if(c > n+5)continue;
        int ok =0 ;
        for(int i=0 ; i < v.size() - 1; i++){
            if(v[i]==v[i+1]){
                ok = 1;
            }
            swap(v[i], v[i+1]);
            q.push({v , c + 1 });
            swap(v[i] , v[i+1]);
        }
        if(!ok){
            cout <<c;
            return 0 ;
        }
    }
    cout <<-1 ;
}

Compilation message (stderr)

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:14:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i=0 ; i < s.size() - 1; i++){
      |                   ~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:29:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         for(int i=0 ; i < v.size() - 1; i++){
      |                       ~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 55
• Subtask 3: 0 / 15
• Subtask 4: 0 / 25