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What's the wrong with this code? plz help me..........

#include<iostream>
#include<stdio.h>
#include<math.h>
#include<algorithm>
#include<vector>
#include<stdlib.h>

using namespace std;

//#define longlong long long
//#define longlong __int64
#define max 1002

bool prime[max];
//longlong pr[max ...