Submission #744137

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
744137	2023-05-18 08:31:35	Kenjikrab	Strange Device (APIO19_strange_device)	C++14	100 / 100	578 ms	52808 KiB

strange_device

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#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define fi first
#define se second
#define db double
using namespace std;
int const n_max=1e6+10;
int gcd(int a,int b)
{
    if(b%a==0)return a;
    return gcd(b%a,a);
}
int st[n_max];
int en[n_max];
signed main()
{
    cin.tie(nullptr)->sync_with_stdio(false);
    int n,A,B;
    cin>>n>>A>>B;
    int h=gcd(min(A,B+1),max(A,B+1));
    int sum=0;
    for(int i=0;i<n;i++)
    {
        cin>>st[i]>>en[i];
        sum+=en[i]-st[i]+1;
    }
    int val=A/h;
    if((db) en[n-1]/val<= (db) B)
    {
 
 
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Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:58:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(int i=0;i<keep.size();i++)
      |                 ~^~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30