51 lines
896 B
C
51 lines
896 B
C
// 编写一个程序, 创建一个线程, 该线程计算并打印斐波那契数列的前n项, n由用户输入
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#include <stdio.h>
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#include <pthread.h>
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#include <stdlib.h> // atoi
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void *fibonacci(void *data)
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{
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int n = *((int *)data);
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int a = 1, b = 1, c;
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if (n >= 1)
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{
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c = a;
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printf("%d\t", c);
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}
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if (n >= 2)
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{
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c = b;
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printf("%d\t", c);
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}
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int temp = n - 2;
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while (n > 2 && temp > 0)
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{
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c = a + b;
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a = b;
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b = c;
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temp--;
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printf("%d\t", c);
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}
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printf("\n");
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return NULL;
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}
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int main(int argc, char const **argv)
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{
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if (argc != 2)
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{
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printf("用法: %s 数字\n", argv[0]);
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return 0;
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}
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int input = atoi(argv[1]);
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pthread_t tid;
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pthread_create(&tid, NULL, fibonacci, (void *)&input);
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pthread_join(tid, NULL);
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return 0;
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} |