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#include <stdio.h>
#include <strings.h>

int main() {
    char sentence[100], smallest[100], largest[100];
    char words[10][100];
    char empty [100] = {'\0'};
    printf("Enter a sentence: ");
    gets(sentence);
    strlwr(sentence);
    strcat(sentence, " ");

    char tmp[100];
    int i = 0, wordcount = 0;

    while(sentence[i] != '\0') {
        if (sentence[i] == ' ') {
            strcpy(words[wordcount], tmp);
            wordcount++;
            strcpy(tmp, empty);
            i++;
            continue;
        }
        tmp[strlen(tmp)] = sentence[i];
        tmp[strlen(tmp) + 1] = '\0';
        i++;
    }

    strcpy(smallest, words[0]);
    strcpy(largest, words[0]);


    for(i=0; i < wordcount; i++) {
        if (strlen(smallest) > strlen(words[i]))
            strcpy(smallest, words[i]);
        if (strlen(largest) < strlen(words[i]))
            strcpy(largest, words[i]);
    }

    printf("Smallest word is: %s\nLargest word is: %s", smallest, largest);

    return 0;
}