c/c++查找字符串中最长的和最短的单词，最长和最短可能不止一个，并统计起格式

ゝ一世哀愁。 2023-02-17 14:27 10阅读 0赞

# 查找字符串中最长的和最短的单词，最长和最短可能不止一个，并统计起格式 #

#include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    
    #define LEN 20
    
    struct Word{ 
    	char *name;
    	int len;
    }tmp;
    
    void destroys(struct Word *arr, int j)
    { 
    	for(int i = j; i < LEN; i++){ 
    		free(arr[i].name);
    		arr[i].name = NULL;
    	}
    }
    
    void initWords(struct Word *arr, char *str)
    { 
    	char *p = strtok(str, " ,.");
    	int i = 0;
    	while(p != NULL){ 
    		arr[i].name = malloc(strlen(p)+1);
    		strcpy(arr[i].name, p);
    		arr[i].len = strlen(p);
    		p = strtok(NULL, " ,.");
    		//printf("%s\t%d\n", arr[i].name, arr[i].len);
    		i++;
    	}
    }
    
    void mySort(struct Word *arr)
    { 
    	for(int i = 0; i < LEN - 1; i++){ 
    		for (int j = 0; j < LEN - 1 - i; j++){ 
    			if(arr[j].len > arr[j + 1].len){ 
    				tmp = arr[j];
    				arr[j] = arr[j + 1];
    				arr[j + 1]= tmp;
    			}
    		}
    	}
    }
    
    void func(char *str)
    { 
    	struct Word arr[LEN] = { 0};
    	initWords(arr, str);
    	mySort(arr);
    	int count_max = 0;
    	int count_min = 0;
    	int i, j;
    	int len_max = arr[LEN-1].len;
    	int len_min = 0;
    	for(i = LEN - 1; i >= 0; i--){ 
    		if(arr[i].len == len_max){ 
    			count_max++;
    		}
    		else{ 
    			break;
    		}	
    	}
    	for(j = 0; j < LEN; j++){ 
    		if(arr[j].len != 0){ 
    			len_min = arr[j].len;
    			break;
    		}
    	}
    	for(int k = j; k < LEN; k++){ 
    		if(arr[k].len == len_min){ 
    			count_min++;
    		}
    		else{ 
    			break;
    		}
    	}
    	printf("最短的单词共%d个，长度为%d, 分别是：%s", count_min, len_min, arr[j].name);
    	for(int k = 1; k < count_min; k++){ 
    		printf(", %s", arr[j+k].name);
    	}
    	printf("\n最长的单词共%d个，长度为%d, 分别是：%s", count_max, len_max, arr[LEN-count_max]);
    	for(int k = LEN-count_max+1; k < LEN; k++){ 
    		printf(", %s", arr[k].name);
    	}
    	printf("\n");
    	destroys(arr, j);
    }
    
    int main()
    { 
    	char str[100] = "Mike Shinoda, Rob Bourdon, and brad Delson ";
    	
    	func(str);
    
    	return 0;
    }