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this code shows WA...can you please help me finding the mistake?Thanks in advance




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

using namespace std;

int digit(char *n, int i)
{
//negative sign
if (n[i] == '-' || n[i] == '+' || n[i] == ' ')
return 0;

// 0 to 9
if (n[i] >= '0 ...