I am getting wrong answer at test case 427. The problem link is [here](https://codeforces.me/contest/2064/problem/B) and my solution link is [here](https://codeforces.me/contest/2064/submission/306527234)↵
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#include <bits/stdc++.h>↵
using namespace std;↵
↵
int main(){↵
↵
int T;cin>>T;↵
while(T--){↵
int n;cin>>n;↵
vector<int> a(n);↵
↵
map<int,int> mp;↵
↵
for(int i=0;i<n;i++){↵
cin>>a[i];↵
mp[a[i]]++;↵
} ↵
↵
bool ok = true;↵
for(auto x:a){↵
if(mp[x] == 1){↵
ok = false;↵
break;↵
}↵
}↵
if(ok){↵
cout<<0<<endl;↵
continue;↵
}↵
↵
int l = -1, r = -1;↵
int cnt = 0;↵
int len = -INF;↵
int ansl = -1, ansr = -1;↵
int f = 0;↵
↵
↵
for(int i=0;i<n;i++){↵
if(mp[a[i]] == 1 && f == 0){↵
l = i;↵
f = 1;↵
}↵
if(mp[a[i]] == 1 && f == 1){↵
↵
cnt++;↵
if(i == n-1){↵
r = i;↵
f = 0;↵
if(len < cnt){↵
len = cnt;↵
ansl = l;↵
ansr = r;↵
}↵
} ↵
}↵
if(mp[a[i]] > 1 && f == 1){↵
r = i-1;↵
f = 0;↵
if(len < cnt){↵
len = cnt;↵
ansl = l;↵
ansr = r;↵
}↵
}↵
}↵
cout<<ansl+1<<" "<<ansr+1<<endl;↵
↵
}↵
}↵
~~~~~↵
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~~~~~↵
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using namespace std;↵
↵
int main(){↵
↵
int T;cin>>T;↵
while(T--){↵
int n;cin>>n;↵
vector<int> a(n);↵
↵
map<int,int> mp;↵
↵
for(int i=0;i<n;i++){↵
cin>>a[i];↵
mp[a[i]]++;↵
} ↵
↵
bool ok = true;↵
for(auto x:a){↵
if(mp[x] == 1){↵
ok = false;↵
break;↵
}↵
}↵
if(ok){↵
cout<<0<<endl;↵
continue;↵
}↵
↵
int l = -1, r = -1;↵
int cnt = 0;↵
int len = -INF;↵
int ansl = -1, ansr = -1;↵
int f = 0;↵
↵
↵
for(int i=0;i<n;i++){↵
if(mp[a[i]] == 1 && f == 0){↵
l = i;↵
f = 1;↵
}↵
if(mp[a[i]] == 1 && f == 1){↵
↵
cnt++;↵
if(i == n-1){↵
r = i;↵
f = 0;↵
if(len < cnt){↵
len = cnt;↵
ansl = l;↵
ansr = r;↵
}↵
} ↵
}↵
if(mp[a[i]] > 1 && f == 1){↵
r = i-1;↵
f = 0;↵
if(len < cnt){↵
len = cnt;↵
ansl = l;↵
ansr = r;↵
}↵
}↵
}↵
cout<<ansl+1<<" "<<ansr+1<<endl;↵
↵
}↵
}↵
~~~~~↵
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