string - first and last words in alphabetical order in c -

this c prog takes 5 words separated spaces , gives first , last word acc alphabetical order. eg.enter 5 words: banana ap pa kiwi orange. first word=ap last word=pa.no error shown prog isn't working, more 5 words being accepted.this code:

void findword(char word[][20], char *first, char *last); int main() {     char word[5][20];     char *first, *last;      printf("enter 5 words separated spaces: \n");     (int = 0; < 5; i++)     {         (int j = 0; j < 20; j++)             scanf("%c", &word[i][j]);      }     first = word[0][0];     last = word[0][0];      findword(word, &first, &last);     printf("the first word is: %s , last word is: %s  ", first, last);  }  void findword(char word[][20], char *first, char *last) {     int k, l;      (k = 0; k < 5; k++)     {         (l = 0; l < 20; l++)         {             while ((word[k][l] != '\0') && (word[k][l] == ' '))             {                 if (word[k][l + 1]< *first)                     *first = word[k][l + 1];                 else                      *last = word[k][l + 1];             }         }     } } 

try this

#include<stdio.h> #include<string.h> void findword(char word[][20], char *first, char *last); int main() {     char word[5][20];     char first[20], last[20]; int i,j;          printf("enter 5 words separated spaces: \n");     (i = 0; < 5; i++)     {        scanf("%s", word[i]);      }     strcpy(first,word[0]);     strcpy(last,word[0]);      findword(word, first, last);     printf("the first word is: %s , last word is: %s  ", first, last);  }  void findword(char word[][20], char *first, char *last) {     int k;      (k = 0; k < 5; k++)     {     if(strcmp(word[k], last)>0)         strcpy(last,word[k]);     else if(strcmp(word[k],first)<0)         strcpy(first,word[k]);     } }