华为机试C语言-组成最大数

题目描述：https://pycoder.blog.csdn.net/article/details/125923027

想不到这也是一道qsort的题目~

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>char str[1000];
int strArrIndex;
char strArr[1000][6];void input_handler(void)
{char *tmp = NULL;tmp = strtok(str, ",");strcpy(strArr[strArrIndex++], tmp);while (1) {tmp = strtok(NULL, ",");if (tmp == NULL) break;strcpy(strArr[strArrIndex++], tmp);}
}int myCmp(const void *a, const void *b)
{char *aa = (char *)a;char *bb = (char *)b;char tmpA[12] = {0};char tmpB[12] = {0};char tmp[12] = {0};strcpy(tmpA, aa);strcpy(tmp, aa);strcpy(tmpB, bb);int data1 = atoi(strcat(tmpA, tmpB));int data2 = atoi(strcat(tmpB, tmp));return data2 - data1;
}int main(void)
{char res[1000] = {0};strArrIndex = 0;gets(str);input_handler();qsort(strArr, strArrIndex, sizeof(strArr[0]), myCmp);for (int i = 0; i < strArrIndex; i++) {strcat(res, strArr[i]);}printf("%s\n", res);return 0;
}

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