Submission #83644

#	Time	Username	Problem	Language	Result	Execution time	Memory
83644		nikolapesic2802	Untitled (POI11_tem)	C++14	24 / 100	965 ms	33792 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back

const int N=1e6+5;
vector<int> lo(N),hi(N);


int main()
{
    int n;
    scanf("%i",&n);
    for(int i=0;i<n;i++)
        scanf("%i %i",&lo[i],&hi[i]);
    multiset<int,greater<int> > mins;
    int res=1;
    int s=0;
    mins.insert(lo[0]);
    for(int i=1;i<n;i++)
    {
        while(mins.size()&&*mins.begin()>hi[i])
        {
            mins.erase(mins.find(lo[s]));
            s++;
        }
        mins.insert(lo[i]);
        res=max(res,i-s+1);
    }
    printf("%i\n",res);
 
    return 0;
}

Compilation message (stderr)

tem.cpp: In function 'int main()':
tem.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i",&n);
     ~~~~~^~~~~~~~~
tem.cpp:17:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i %i",&lo[i],&hi[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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