Envío 3021

Código

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

int main()
{
    char *num = NULL;
    size_t len = 0;
    ssize_t nread;
    long int i;
    int carry = 1;

    nread = getline(&num, &len, stdin);

    for(i = (long int)nread - 2; i >= 0 && carry; i--)
    {
        if(num[i] == 57)
            num[i] = 48;
        else
            num[i] += carry--;
    }
    
    if(carry > 0)
        putchar('1');
    
    for(i = 0; num[i] != '\0'; i++)
        putchar(num[i]);

    free(num);
    return 0;
}