OJ Board

whats wrong with dis code ??
using namespace std;
#include<iostream>
#include<stdio.h>
#include<stdlib.h>
int main()
{
unsigned long long t;
cin>>t;
while(t--)
{
unsigned long long int n,i,line,tot=0,temp=0;
cin>>n;
unsigned char paid[n],y;
unsigned int value[n];
for(i=0;i<n;i++)
{
scanf ...