WA after even writing same code of video solution

#1

#include<bits/stdc++.h>
using namespace std;
bool AttendAll(vector<vector>& events){
sort(events.begin(), events.end());
int i = 1;
while(i < events.size()){
if(events[i][0] < events[i-1][1])
return false;
i++;
}
return true;
}
int main(){
int n;
cin>>n;
vector<vector> arr;

for(int i = 0; i < n; i++){
    int s,e;
    cin>>s>>e;
    vector<int>temp;
    temp.push_back(s);
    temp.push_back(e);
    arr.push_back(temp);
}
cout << AttendAll(arr);

}

Can you help me what’s wrong with this code

#2

Hello @Neil028 what is the logic that you are using?
your have not implemented your code in the correct way.
i dont think this code can be of video.
your code is totally wrong.
Here for your reference i am attaching the code:


if you have any doubt you can ask here:
Happy Learning!!

#3

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