Testcase 3 and 7 not working

#1

i am getting wrong answer on test case 3 and 7. i have checked each and everything. Please let me know if i am missing something,
Here is my code:
#include
using namespace std;
int main() {
int n,a,b,count=1,diff;
bool flag=true,increasing=false;
cin>>n;
cin>>a;
while(count<n){
cin>>b;
diff=b-a;
if(diff==0)
flag=false;
else if(diff>0)
increasing=true;
else if(diff<0 && increasing)
flag=false;
b=a;
count++;
}
if(flag)
cout<<“true”<<endl;
else
cout<<“false”<<endl;
return 0;
}

#2

Hi, your code is not working correctly for the case when the sequence is first decreasing and then increasing.
For example, for the case when:
Input:
5
5 4 3 4 5
Expected output is true as first the sequence is strictly decreasing and then strictly increasing, but your code prints false in this case.

#3

Hi, as you are not responding to this thread, I am marking your doubt as Resolved for now. Re-open it if required.

Please mark your doubts as resolved in your course’s “ Ask Doubt ” section, when your doubt is resolved.