제출 #42283

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
42283		milmillin	ZigZag (COCI17_zigzag)	C++14	80 / 80	243 ms	13872 KiB

zigzag

#include <cstdio>
#include <vector>
#include <queue>
#include <string>
#include <iostream>

using namespace std;

struct word {
	string x;
	int cnt;
};

bool operator< (const word &a, const word&b) {
	if (a.cnt!=b.cnt) return a.cnt>b.cnt;
	return a.x>b.x;
}

priority_queue<word> qq[30];

int main () {
	int k,n;
	scanf("%d%d",&k,&n);
	string x;
	for (int i=0;i<k;i++) {
		cin>>x;
		qq[x[0]-'a'].push(word{x,0});
	}
	char xx;
	word now;
	for (int i=0;i<n;i++) {
		scanf(" %c",&xx);
		now = qq[xx-'a'].top();
		qq[xx-'a'].pop();
		cout << now.x << '\n';
		now.cnt++;
		qq[xx-'a'].push(now);
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

zigzag.cpp: In function 'int main()':
zigzag.cpp:23:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&k,&n);
                     ^
zigzag.cpp:32:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %c",&xx);
                   ^

• Subtask 1: 80 / 80