제출 #795495

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
795495		RecursiveCo	이상한 기계 (APIO19_strange_device)	C++14	10 / 100	580 ms	33372 KiB

strange_device

// CF template, version 3.0

#include <bits/stdc++.h>

using namespace std;

#define improvePerformance ios_base::sync_with_stdio(false); cin.tie(0)
#define getTest int t; cin >> t
#define eachTest for (int _var=0;_var<t;_var++)
#define get(name) int (name); cin >> (name)
#define out(o) cout << (o)
#define getList(cnt, name) vector<int> (name); for (int _=0;_<(cnt);_++) { get(a); (name).push_back(a); }
#define sortl(name) sort((name).begin(), (name).end())
#define rev(name) reverse((name).begin(), (name).end())
#define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
#define decision(b) if (b){out("YES");}else{out("NO");}

#define int long long int

signed main() {
    improvePerformance;
    //getTest;

    //eachTest {
        get(n);
        get(A);
        get(B);
        bool toobig = 2e18 / A <= B; // should be good enough, theoretically.
        vector<pair<int, int>> events;
        forto(n, i) {
            get(l);
            get(r);
            if (!toobig) {
                if (r - l + 1 >= A * B) {
                    out(A * B);
                    return 0;
                }
                l %= A * B;
                r %= A * B;
            }
            events.push_back({l, -1});
            events.push_back({r, 1});
            if (r < l) {
                events.push_back({0, -1});
                events.push_back({A * B - 1, 1});
            }
        }
        int ans = 0;
        int last = -1;
        int m = events.size();
        sortl(events);
        int balance = 0;
        forto(m, i) {
            balance -= events[i].second;
            if (last == -1 && balance > 0) {
                last = events[i].first;
            } else if (balance == 0) {
                ans += events[i].first - last + 1;
                last = -1;
            }
        }
        out(ans);
    //}
}

컴파일 시 표준 에러 (stderr) 메시지

strange_device.cpp: In function 'int main()':
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'n' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
strange_device.cpp:25:9: note: in expansion of macro 'get'
   25 |         get(n);
      |         ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'A' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
strange_device.cpp:26:9: note: in expansion of macro 'get'
   26 |         get(A);
      |         ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'B' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
strange_device.cpp:27:9: note: in expansion of macro 'get'
   27 |         get(B);
      |         ^~~
strange_device.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
strange_device.cpp:30:9: note: in expansion of macro 'forto'
   30 |         forto(n, i) {
      |         ^~~~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'l' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
strange_device.cpp:31:13: note: in expansion of macro 'get'
   31 |             get(l);
      |             ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'r' [-Wparentheses]
   10 | #define get(name) int (name); cin >> (name)
      |                       ^
strange_device.cpp:32:13: note: in expansion of macro 'get'
   32 |             get(r);
      |             ^~~
strange_device.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
      |                                   ^
strange_device.cpp:53:9: note: in expansion of macro 'forto'
   53 |         forto(m, i) {
      |         ^~~~~

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