Submission #217011

#	Time	Username	Problem	Language	Result	Execution time	Memory
217011		sevlll	Strange Device (APIO19_strange_device)	C++17	Compilation error	0 ms	0 KiB

strange_device

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <queue>
#include <bitset>

#define pb push_back
#define int long long
#define str string
using namespace std;
const int M = 1e9 + 7;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, a, b;
    cin >> n >> a >> b;
    vector<pair<int, int>> pr(n);
    for (int i = 0; i < n; i++) cin >> pr[i].first >> pr[i].second;
    int g = __gcd(a, b+1);
    a /= g;
    _int128 num = a * b;
    vector<pair<int, int>> ev;
    for (auto p : pr) {
        int l = p.first, r = p.second;
        l %= num;
        r %= num;
        if (r < l) {
            ev.pb({l, 1});
            ev.pb({num, -1});
            ev.pb({0, 1});
            ev.pb({r+1, -1});
        } else {
            ev.pb({l, 1});
            ev.pb({r+1, -1});
        }
    }
    sort(ev.begin(), ev.end());
    int bal = 0;
    int last = 0;
    int ans = 0;
    for (auto p : ev) {
        int x = p.first, type = p.second;
        if (bal) {
            ans += (x - last);
        }
        last = x;
        bal += type;
    }
    cout << ans;
}

Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:38:5: error: '_int128' was not declared in this scope
     _int128 num = a * b;
     ^~~~~~~
strange_device.cpp:38:5: note: suggested alternative: '__int128_t'
     _int128 num = a * b;
     ^~~~~~~
     __int128_t
strange_device.cpp:42:14: error: 'num' was not declared in this scope
         l %= num;
              ^~~
strange_device.cpp:42:14: note: suggested alternative: 'enum'
         l %= num;
              ^~~
              enum
strange_device.cpp:46:28: error: no matching function for call to 'std::vector<std::pair<long long int, long long int> >::push_back(<brace-enclosed initializer list>)'
             ev.pb({num, -1});
                            ^
In file included from /usr/include/c++/7/vector:64:0,
                 from strange_device.cpp:6:
/usr/include/c++/7/bits/stl_vector.h:939:7: note: candidate: void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = std::pair<long long int, long long int>; _Alloc = std::allocator<std::pair<long long int, long long int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<long long int, long long int>]
       push_back(const value_type& __x)
       ^~~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:939:7: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type& {aka const std::pair<long long int, long long int>&}'
/usr/include/c++/7/bits/stl_vector.h:953:7: note: candidate: void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = std::pair<long long int, long long int>; _Alloc = std::allocator<std::pair<long long int, long long int> >; std::vector<_Tp, _Alloc>::value_type = std::pair<long long int, long long int>]
       push_back(value_type&& __x)
       ^~~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:953:7: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<std::pair<long long int, long long int> >::value_type&& {aka std::pair<long long int, long long int>&&}'