Submission #930272

#	Time	Username	Problem	Language	Result	Execution time	Memory
930272		Aiperiii	Paint By Numbers (IOI16_paint)	C++14	10 / 100	133 ms	600 KiB

paint

#include <bits/stdc++.h>
#include "paint.h"
//#define int long long
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define pb push_back
using namespace std;
string solve_puzzle(string s,vector<int> c) {
    int n=s.size();
    string res="";
    vector <int> cnt1(n),cnt2(n);
    for(int i=0;i<(1<<n);i++){
        string x=s;
        for(int j=0;j<n;j++){
            if((i&(1<<j))!=0)x[j]='X';
            else x[j]='_';
        }
        int cnt=0,ind=0;
        bool ok=1;
        for(int j=0;j<n;j++){
            if(x[j]=='X')cnt++;
            else if(cnt!=0){
                if(ind<c.size() && c[ind]==cnt)ind++;
                else ok=0;
                cnt=0;
            }
        }
        if(cnt!=0){
            if(ind<c.size() && c[ind]==cnt)ind++;
            else ok=0;
        }
        if(ok && ind==c.size()){
            for(int j=0;j<n;j++){
                if(x[j]=='X')cnt1[j]++;
                else cnt2[j]++;
            }
        }
    }
    for(int i=0;i<n;i++){
        if(cnt1[i] && cnt2[i])res+='?';
        else if(cnt1[i])res+='X';
        else res+='_';
    }
    return res;
}
/*signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);cout.tie(0);
    string s;
    cin>>s;
    int n;
    cin>>n;
    vector <int> c(n);
    for(int i=0;i<n;i++){
        cin>>c[i];
    }
    cout<<solve_puzzle(s,c);
}
*/

Compilation message (stderr)

paint.cpp: In function 'std::string solve_puzzle(std::string, std::vector<int>)':
paint.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |                 if(ind<c.size() && c[ind]==cnt)ind++;
      |                    ~~~^~~~~~~~~
paint.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |             if(ind<c.size() && c[ind]==cnt)ind++;
      |                ~~~^~~~~~~~~
paint.cpp:33:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         if(ok && ind==c.size()){
      |                  ~~~^~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 3 / 3
• Subtask 3: 0 / 22
• Subtask 4: 0 / 27
• Subtask 5: 0 / 21
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10