Question

How to left pad a number with zeros in C

Answer 1

#include <stdio.h>
#include <string.h>

int main() {
    int n = 17493;
    char buffer[16] = "";

    snprintf(buffer, sizeof(buffer), "%08d", n);

    printf("%s\n", buffer); 

    return 0;
}



/*
run:

00017493

*/

 

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