제출 #781581

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
781581		makanhulia	Strange Device (APIO19_strange_device)	C++17	0 / 100	5070 ms	524288 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define fi first
#define se second
#define pb push_back
#define TC int t; cin>>t; while(t--)
#define all(x) (x).begin(),(x).end()
//*AC BERSAMA ALLAH  FORTIS FORTUNA ADIUVAT
//# nyampah

ll gcd(ll a, ll b){
    if(b==0) return a;
    else return gcd(b, a%b);
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    ll n,a,b; 
    cin>>n>>a>>b;

    ll kpk=a/(gcd(a,b))*b;

    set<pair<ll,ll> > sp;
    for(int i=0;i<n;i++){
        ll l,r; cin>>l>>r;
        // if(kpk<r-l+1){
        //     r=l+kpk;
        // }
        for(int j=l;j<=r;j++){
            sp.insert(make_pair((j+j/b)%a,(j%b)));
        }
    }

    cout<<sp.size();

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

strange_device.cpp: In function 'int main()':
strange_device.cpp:24:8: warning: unused variable 'kpk' [-Wunused-variable]
   24 |     ll kpk=a/(gcd(a,b))*b;
      |        ^~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
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• Subtask 6: 0 / 20
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• Subtask 8: 0 / 30