Code running fine in my ide but showing wrong compile here why?

#1

#include
#include
using namespace std;
int main()
{
int n;
cin >> n;
while (n)
{
int num;
cin >> num;
pair<int, int> s[num];
int work = 1;
for (int i = 0; i < num; i++)
{
cin >> s[i].first;
cin >> s[i].second;
}
for (int i = 1; i < num; i++)
{
if (s[i].first >= s[i - 1].second)
{
work++;
}
else
{
s[i].first = s[i - 1].first;
s[i].second = s[i - 2].second;
}
}
cout << work<<endl;
n–;
}
return 0;
}

#2

hi… ur logic is not correct… u have to sort them in order such that activities that finish early should come before…
https://ide.codingblocks.com/s/589805 refer this

#3

yeh got it thanks a lot

#4

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