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plz help me , im getting RA .can u plz tell me where im wrong.
im posting my code ..
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
class acm
{
public:
int xxx()
{
vector< vector<int> > a;
int n1,n2,first=0,last=0,co=0,count=0,count1=0,co1=0;
vector<int> v,ans ...

i am pasting my code which is giving right answer for given test case but giving wrong answer after submitting the code please find where i am wrong.
if possible can u give me some test cases.


#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
using namespace std;
class ...