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Saturday, 13 May 2017

Maximum Sub Array

problem id:--http://practice.geeksforgeeks.org/problems/maximum-sub-array/0

code:-

#include<iostream>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
    {
    int n;
    cin>>n;
    int a[n];
    for(int i=0;i<n;i++)
    cin>>a[i];
    int curr_sum=0,m=0,loc1,loc2,x,y;
    int flag=1;
    for(int i=0;i<n;++i)
    {
    if(a[i]<0)
       {
       curr_sum=0,flag=1;
       continue;
       }
    curr_sum+=a[i];
    if(flag==1)
    {
    loc1=i,loc2=i;
    flag=0;
}
else
    ++loc2;
    if(m<=curr_sum)
    {
    if(m==0|| y-x<loc2-loc1 || m<curr_sum)
    x=loc1,y=loc2;
m=curr_sum;
}
}
if(m)
for(int i=x;i<=y;++i)
cout<<a[i]<<" ";
else
cout<<0;
cout<<'\n';
    }
return 0;
}

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