Print the number 0 using write()

#include <stdio.h>

int main(void) {
    int n = 123;

    putchar((n % 10) + '0');
    n /= 10;
    putchar((n % 10) + '0');
    n /= 10;
    putchar((n % 10) + '0');

    return 0;
}

Source: cboard.cprogramming.com

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