[정올 2518] 문자열변환

http://www.jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=1779&sca=99&sfl=wr_hit&stx=2518 

JUNGOL

#include <stdio.h>

char cv['z' + 1], arr[100010];
int N, M;

int main()
{
	scanf("%d", &N);
	for (int i = 0; i < N; i++)
	{
		char a, b;
		scanf(" %c %c", &a, &b);
		cv[a] = b;
	}
	scanf("%d", &M);
	for (int i = 0; i < M; i++) { 
		scanf(" %c", arr + i); 
		if (cv[arr[i]] != 0)	arr[i] = cv[arr[i]];
	}
	printf("%s", arr);

	return 0;
}