字符串数组排序问题
创建一个字符串数组,总共5个元素,每个元素最多保存30个字符 ,写一个函数排序整个数组。 //方法一: #include#include void sort(char *arr[], int n) { char *tmp; int i, j, k; for (i = 0; i < n - 1; i++) //选择排序 { k = i; for (j = i + 1; j < n; j++) { if (strcmp(arr[k], arr[j])>0) { k = j; } } tmp = arr[i]; arr[i] = arr[k]; arr[k] = tmp; } } void print(char *arr[], int n) { int i = 0; for (i = 0; i < n; i++) { printf("%s\n", arr[i]); } } int main() { int n = 5; char *arr[] = { "abcde", "efghi", "hijkl", "bcdef", "defgh" }; sort(arr, n); print(arr, n); return 0; } //方法二: #include #include int main() { char arr[5][30] = { "aaaa", "cccc", "bbbb", "eeee", "dddd" }; int i = 0, j = 0; char tmp[30] = { 0 }; for (i = 0; i < 4; i++) //冒泡排序 { for (j = 0; j < 4 - i; j++) { if (strcmp(arr[j], arr[j + 1]) > 0) { strcpy(tmp, arr[j]); strcpy(arr[j], arr[j + 1]); strcpy(arr[j + 1], tmp); } } } for (i = 0; i < 5; i++) { printf("%s\n", arr[i]); } return 0; }
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