|
马上注册,结交更多好友,享用更多功能^_^
您需要 登录 才可以下载或查看,没有账号?立即注册
x
- #include <stdio.h>
- #define MAX_SIZE 100
- int main()
- {
- int numbers[MAX_SIZE];
- int counts[201] = {0};
- int num, i, j, temp;
-
- printf("请输入整数(以输入-1结束):\n");
- i = 0;
- while(1)
- {
- scanf("%d", &num);
- if(num == -1)
- {
- break;
- }
- if (num >= -100 && num <= 100)
- {
- numbers[i++] = num;
- counts[num + 100]++;
- }
- else
- {
- printf("整数超出范围\n");
- }
- }
-
- for (i = 0; i < MAX_SIZE - 1; i++)
- {
- for (j = 0; j < MAX_SIZE - i - 1; j++)
- {
- if (counts[j] < counts[j + 1])
- {
- temp = counts[j];
- counts[j] = counts[j + 1];
- counts[j + 1] = temp;
- temp = numbers[j];
- numbers[j] = numbers[j + 1];
- numbers[j + 1] = temp;
- }
- }
- }
- printf("排序结果:\n");
- for (i = 0; i < MAX_SIZE; i++)
- {
- if (counts[i] != 0)
- {
- printf("%d出现了%d次\n", numbers[i], counts[i]);
- }
- }
-
- return 0;
- }
复制代码
这代码运行起来不对
这段代码的问题在于排序部分的循环条件有误。循环条件应为 i < MAX_SIZE - 1 ,而不是 i < MAX_SIZE 。因为数组 numbers 和 counts 的大小都是 MAX_SIZE ,所以循环条件应该是 i < MAX_SIZE - 1 ,以避免访问数组越界。
以下是修改后的代码:
- #include <stdio.h>
- #define MAX_SIZE 100
- int main()
- {
- int numbers[MAX_SIZE];
- int counts[201] = {0};
- int num, i, j, temp;
- printf("请输入整数(以输入-1结束):\n");
- i = 0;
- while(1)
- {
- scanf("%d", &num);
- if(num == -1)
- {
- break;
- }
- if (num >= -100 && num <= 100)
- {
- numbers[i++] = num;
- counts[num + 100]++;
- }
- else
- {
- printf("整数超出范围\n");
- }
- }
- for (i = 0; i < MAX_SIZE - 1; i++)
- {
- for (j = 0; j < MAX_SIZE - i - 1; j++)
- {
- if (counts[j] < counts[j + 1])
- {
- temp = counts[j];
- counts[j] = counts[j + 1];
- counts[j + 1] = temp;
- temp = numbers[j];
- numbers[j] = numbers[j + 1];
- numbers[j + 1] = temp;
- }
- }
- }
- printf("排序结果:\n");
- for (i = 0; i < MAX_SIZE; i++)
- {
- if (counts[ i] != 0)
- {
- printf("%d出现了%d次\n", numbers[ i], counts[ i]);
- }
- }
- return 0;
- }
复制代码
现在代码应该可以正确运行并按照出现次数排序输出结果。
|
|