제출 #400224

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
400224		faresbasbs	Comparing Plants (IOI20_plants)	C++14	0 / 100	70 ms	3048 KiB

plants

#include <bits/stdc++.h>
#include "plants.h"
using namespace std;
bool seen[5001];
int val[5001];

void init(int k , vector<int> r){
	int n = r.size() , cnt = 0;;
	for(int i = 0 ; i < n ; i += 1){
		int pos;
		for(int j = 0 ; j < n ; j += 1){
			if(seen[j] || r[j]){
				continue;
			}
			pos = j;
		}
		for(int j = 1 ; j < k ; j += 1){
			if(seen[(pos-j+n)%n] || r[(pos-j+n)%n]){
				continue;
			}
			pos = (pos-j+n)%n;
			break;
		}
		val[pos] = cnt++;
		seen[pos] = 1;
		for(int j = 1 ; j < k ; j += 1){
			if(seen[(pos-j+n)%n]){
				continue;
			}
			r[(pos-j+n)%n] -= 1;
		}
	}
}

int compare_plants(int x, int y){
	if(!seen[x] || !seen[y]){
		return 0;
	}
	if(val[x] < val[y]){
		return 1;
	}
	return -1;
}

컴파일 시 표준 에러 (stderr) 메시지

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:25:13: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |   seen[pos] = 1;
      |   ~~~~~~~~~~^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25