제출 #382930

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
382930		abil	Strange Device (APIO19_strange_device)	C++14	5 / 100	377 ms	16876 KiB

strange_device

#include <bits/stdc++.h>

#define SPEEDUP ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define all(s) s.begin(),s.end()
#define int long long

using namespace std;

const int N = (1e6 + 12);
const int mod = (1e9 + 7);
const int inf = (1e18 + 7);

int l[N], r[N];

main(){
    SPEEDUP;
    int n, A, B;
    cin >> n >> A >> B;
//    for(int i = 1; i <= 25; i++){
//        cout << i << " ";
//    }
//    cout << endl;
//    vector<int > vec;
//    for(int i = 0;i <= 25; i++){
//        cout << ((i + (i + B - 1) / B)) << " ";
//        vec.pb(((i + (i + B - 1) / B)));
//    }
//    cout << endl;
//    for(int i = 0;i <= 30; i++){
//        cout << (i % B) << " ";
//    }
//    cout << endl;
//    for(auto to : vec){
//        cout << to % A << " ";
//    }
//    cout << endl;
    for(int i = 1; i <= n; i++){
        cin >> l[i] >> r[i];
    }
    int x;
    int L = r[1] - l[1] + 1ll;
    if(0 == (A % (B + 1ll))){
        if(inf / B >= (A / (B + 1ll))){
            x = B * (A / (B + 1ll));
        }
        else{
            cout << L << endl;
            return 0;
        }
    }
    else{
        if(inf / A >= B){
            x = A * B;
        }
        else{
            cout << L << endl;
            return 0;
        }
    }
    if(x <= L){
        cout << x << endl;
        return 0;
    }
    int ans;
    if(r[1] % x >= l[1] % x){
        ans = r[1] % x - l[1] % x + 1;
    }
    else{
        ans = r[1] % x + 1 + (x - l[1] % x + 1);
    }
    cout << ans << endl;
}

컴파일 시 표준 에러 (stderr) 메시지

strange_device.cpp:19:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   19 | main(){
      |      ^

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30