Submission #775565

#	Time	Username	Problem	Language	Result	Execution time	Memory
775565		JelalTkm	Paint By Numbers (IOI16_paint)	C++17	10 / 100	2063 ms	308 KiB

paint

#include<bits/stdc++.h>
// #include "grader.cpp"
using namespace std;
#define endl  '\n'
#define ll long long
#define ull unsigned long long
#define ff first
#define ss second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define pii pair <int, int>
#define puu pair <ull, ull>
using namespace std;
const ll N=1e5+10;
const ll mod=1e9+7;
string s1="";
bool check(string s,vector<int>c,int l){
    int k=0,ind=0;
    for(int i=0;i<(int)s.size();i++){
        if(s[i]=='X')k++;
        else if(k){
            if(k!=c[ind]){
                return false;
            }
            ind++;
            k=0;
        }
    }
    if(k){
            if(k!=c[ind]){
                return false;
            }
            ind++;
            k=0;
        }
    if(ind!=l)return false;
    return true;
}
void func(int i,int n ,string s,vector<int>c,int k){
    if(i==n){
        if(s1=="" && check(s,c,k)){
            s1=s;
        }
        if(check(s,c,k)){
            for(int i=0;i<n;i++){
                if((s[i]=='X' && s1[i]=='_') || (s[i]=='_' && s1[i]=='X'))s1[i]='?';
                else if(s1[i]!='?')s1[i]=s[i];
            }
        }
        return;
    }
    else{
        if(s[i]=='.'){
            s[i]='X';
            func(i+1,n,s,c,k);
            s[i]='_';
        }
        func(i+1,n,s,c,k);
    }
    return;
}
string solve_puzzle(string s,vector<int>c){
    int n=s.size();
    int k=c.size();
    func(0,n,s,c,k);
    return s1;
}
/* 

*/

• 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