Random

#include <stdio.h>
#include <time.h>
#include <stdlib.h>

void mot(char* m) {
    FILE* f = NULL;
    if((f=fopen("C:\\wordlist.txt", "r")) == NULL) { //erreur d'ouverture
        return;
    }

    srand(time(0));
    fseek(f, 0, SEEK_END);
    int size = ftell(f);
    int pos = rand() % size;
    fseek(f, pos, SEEK_SET);

    int c;
    while((c = fgetc(f)) != '\n' && c!=EOF) {
        fseek(f, -2, SEEK_CUR);
    }
    if(c == EOF) {
        fseek(f,0,SEEK_SET);
    }

    fscanf(f, "%s", m);

    fclose(f);
}

int main() {
    char a[200];
    mot(a);

    printf("%s\n", a);
}