86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <direct.h>
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#endif
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// 简单环形队列
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typedef struct
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{
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int *buf;
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int cap;
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int head;
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int tail;
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int len;
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} Queue;
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static void q_init(Queue *q, int cap)
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{
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q->buf = (int *)malloc(sizeof(int) * cap);
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q->cap = cap;
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q->head = 0;
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q->tail = 0;
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q->len = 0;
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}
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static int q_empty(const Queue *q) { return q->len == 0; }
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static void q_push(Queue *q, int x)
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{
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q->buf[q->tail] = x;
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q->tail = (q->tail + 1) % q->cap;
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q->len++;
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}
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static int q_pop(Queue *q)
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{
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int x = q->buf[q->head];
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q->head = (q->head + 1) % q->cap;
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q->len--;
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return x;
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}
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static void q_free(Queue *q)
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{
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free(q->buf);
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q->buf = NULL;
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q->cap = q->head = q->tail = q->len = 0;
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}
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int main(void)
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{
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// 设置控制台编码为UTF-8,防止中文乱码
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#ifdef _WIN32
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system("chcp 65001 > nul"); // 设置控制台编码为UTF-8
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SetConsoleOutputCP(65001); // 设置控制台输出编码
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SetConsoleCP(65001); // 设置控制台输入编码
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#endif
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int n, m;
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if (scanf("%d %d", &n, &m) != 2)
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return 0;
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if (n <= 0 || m <= 0)
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return 0;
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Queue q;
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q_init(&q, n);
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for (int i = 1; i <= n; ++i)
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q_push(&q, i);
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while (!q_empty(&q))
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{
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// 旋转 m-1 次：把队头移动到队尾（取模优化减少旋转次数）
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int k = (m - 1) % q.len;
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for (int t = 0; t < k; ++t)
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{
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q_push(&q, q_pop(&q));
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}
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int out = q_pop(&q);
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printf("%d\n", out);
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}
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q_free(&q);
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return 0;
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} |