제출 #362207

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
362207		knightron0	Paint By Numbers (IOI16_paint)	C++17	10 / 100	214 ms	492 KiB

paint

#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define float long double

const int MOD = 1e9 + 7;
const int INF = 2e15;
const int MAXN = 1e5 + 5;

string solve_puzzle(string s, vector<int> c){
	int n = s.length();
	int tot = 0;
	int freq_empty[n+2];
	clr(freq_empty, 0);
	int freq_used[n+2];
	clr(freq_used, 0);
	for(int mask = 0;mask<(1<<n);mask++){
		bool valid = true;
		vector<int> blocks;
		int curr = 0;
		for(int b=0;b<n;b++){
			if(mask & (1<<b)){
				if(s[b] == '_'){
					valid = false;
					break;
				} else {
					curr++;
					continue;
				}
			} else {
				if(s[b] == 'X'){
					valid = false;
					break;
				} else {
					if(curr!=0){
						blocks.pb(curr);
					}
					curr = 0;
				}
			}
		}
		if(curr!=0){	
			blocks.pb(curr);
		}
		if(blocks.size() != c.size()) valid = false;
		if(!valid) continue;
		for(int i= 0;i<c.size();i++){
			if(c[i] != blocks[i]) {
				valid = 0;
				break;
			}
		}
		if(valid){
			tot++;
			for(int b=0;b<n;b++){
				if(mask & (1<<b)){
					freq_used[b]++;
				} else {
					freq_empty[b]++;
				}
			}
		}
	}
	string res = "";
	for(int b=0;b<n;b++){
		if(freq_empty[b] == tot){
			res += "_";
		} else if(freq_used[b] == tot){
			res += "X";
		} else {
			res += "?";
		}
	}
	return res;
}

컴파일 시 표준 에러 (stderr) 메시지

paint.cpp:17:17: warning: overflow in conversion from 'double' to 'int' changes value from '2.0e+15' to '2147483647' [-Woverflow]
   17 | const int INF = 2e15;
      |                 ^~~~
paint.cpp: In function 'std::string solve_puzzle(std::string, std::vector<int>)':
paint.cpp:57:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   for(int i= 0;i<c.size();i++){
      |                ~^~~~~~~~~

• 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