Submission #882879

#	Time	Username	Problem	Language	Result	Execution time	Memory
882879		Matjaz	Miners (IOI07_miners)	C++14	45 / 100	1553 ms	1188 KiB

miners

//
//  MinersIOI2007.cpp
//  
//
//  Created by Matjaz Leonardis on 04/12/2023.
//

#include <iostream>
#include <string>
#include <vector>

using namespace std;

// Trying all the different Miners solutions

int N;
string food;


int coal(string s){
    
    int res = 0;
    
    for (int i=0;i<s.size();i++){
        bool m=false,b=false,f=false;
        for (int j=i;j>i-3 && j>=0;j--){
            if (s[j] == 'M') m = true;
            if (s[j] == 'F') f = true;
            if (s[j] == 'B') b = true;
        }
        
        res += m + f + b;
    }
    
    
    return res;
    
}


int main(){
    
    cin >> N;
    cin >> food;
    
    int best = 0;
    
    for (int i=0;i<(1<<N);i++){
        string mine1;
        string mine2;
        for (int j=0;j<N;j++) if ((i&(1<<j)) != 0) mine1 += food[j]; else mine2 += food[j];
        
        best = max(best, coal(mine1) + coal(mine2));
    }
    
    
    cout << best << endl;
    
    return 0;
}

Compilation message (stderr)

miners.cpp: In function 'int coal(std::string)':
miners.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i=0;i<s.size();i++){
      |                  ~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
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