LOSTMAX :Code Chef is saying the code is wrong even though it works fine when I run it. Please tell why is this happening.(BTW I am new to programming)
#include<iostream>
#include<string>
#include<sstream>
int main()
{
int N=0,T,w=0,l,i=0,cnt;
long A[51]={0},res[101]={0};
std::string line;
std::cin>>T;
do
{
getline(std::cin,line);
std::stringstream s (line);
l=0;
while(l<=51)
{
s>>A[l];
l++;
}
for(cnt=0;;)
if(A[cnt]!='\0')
cnt++;
else
break;
N=cnt;
if(A[0]!=N-1)
res[i]=A[0];
for(int j=0;j<N-1;j++)
if(A[j]<A[j+1]&&A[j+1]!=(N-1))
res[i]=A[j+1];
i++;
}while(i<=T);
for(int k=1;k<=T;k++)
std::cout<<res[k]<<"\n";
return 0;
}