PAT A1042 Shuffling Machine

自己思路,没通过

#include <cstdio>
#define N  54
int main() {
	#ifdef ONLINE_JUDGE
	#else
		freopen("1.txt", "r", stdin);
	#endif
	int start[N + 1] = {0}, end[N + 1] = {0}, sequence[N + 1] = {0};
	for(int i = 1; i < N + 1; i++) {//初始化牌的编号
		start[i] = i+1;
	}
    int n;
    scanf("%d", &n);//输入操作的次数
    for(int i = 1; i < N + 1; i++) {//输入每个位置上的牌在操作后的位置
		int n;
		scanf("%d", &sequence[i]);
	}
	/*for(int i = 1; i < N; i++) {
		printf("%d\n", sequence[i]);
	}*/
    for(int i = 0; i < n; i++) {//执行n次操作
		for(int i = 1; i < N + 1; i++) {
			end[sequence[i]] = start[i];
		}
		for(int i = 1; i < N + 1; i++) {
			start[i] = end[i];
		}
	}
	/*for(int i = 1; i < N + 1; i++) {
		printf("%d\n", end[i]);
	}
	*/
	for(int i = 1; i < N; i++) {
		//printf("%d---", end[i]);
		if(i != N) {
			if(end[i] / 13 == 0) {
				if(end[i] % 13 == 0) {
					printf("S13 ");
				} else {
					printf("S%d ", end[i] % 13);
				}
			} else if(end[i] / 13 == 1) {
				if(end[i] % 13 == 0) {
					printf("H13 ");
				} else {
				printf("H%d ", end[i] % 13);
				}
			} else if(end[i] / 13 == 2) {
				if(end[i] % 13 == 0) {
					printf("C13 ");
				} else {
					printf("C%d ", end[i] % 13);
				}
			} else if(end[i] / 13 == 3) {
				if(end[i] % 13 == 0) {
					printf("D13 ");
				} else {
					printf("D%d ", end[i] % 13);
				}
			} else if(end[i] / 13 == 4) {
				printf("J%d ", end[i] % 13);
			}
		} else {
			if(end[i] / 13 == 0) {
				if(end[i] % 13 == 0) {
					printf("S13");
				} else {
					printf("S%d", end[i] % 13);
				}
			} else if(end[i] / 13 == 1) {
				if(end[i] % 13 == 0) {
					printf("H13");
				} else {
				printf("H%d", end[i] % 13);
				}
			} else if(end[i] / 13 == 2) {
				if(end[i] % 13 == 0) {
					printf("C13");
				} else {
					printf("C%d", end[i] % 13);
				}
			} else if(end[i] / 13 == 3) {
				if(end[i] % 13 == 0) {
					printf("D13");
				} else {
					printf("D%d", end[i] % 13);
				}
			} else if(end[i] / 13 == 4) {
				printf("J%d", end[i] % 13);
			}
		}
	}
	return 0;
}

AC

#include <cstdio>
const int N = 54;
char mp[5] = {'S', 'H', 'C', 'D', 'J'};
int start[N+1], end[N+1], next[N+1];

int main() {
	#ifdef ONLINE_JUDGE
	#else
		freopen("1.txt", "r", stdin);
	#endif
	int K;
	scanf("%d", &K);
	for(int i = 1; i <= N; i++) {
		start[i] = i;
	}
	for(int i = 1; i <= N; i++) {
		scanf("%d", &next[i]);
	}
	for(int step = 0; step < K; step++) {
		for(int i = 1; i <= N; i++) {
			end[next[i]] = start[i];
		}
		for(int i = 1; i <= N; i++) {
			start[i] = end[i];
		}
	}
	for(int i = 1; i <= N; i++) {
		if(i != 1) printf(" ");
		start[i]--;
		printf("%c%d", mp[start[i] / 13], start[i] % 13 + 2);
	}
	return 0;
}