제출 #836835

#제출 시각아이디문제언어결과실행 시간메모리
836835borisAngelovExamination (JOI19_examination)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; const int maxn = 600005; const int max_number = 600000; int n, q; struct element { int x; int y; int z; bool is_query; int query_idx; element(int _x, int _y, int _z, bool _is_query, int _query_idx) { x = _x; y = _y; z = _z; is_query = _is_query; query_idx = _query_idx; } }; element a[maxn]; void compress() { vector<int> to_sort; unordered_map<int, int> compressed; int curr_value = 0; for (int i = 1; i <= n + q; ++i) { to_sort.push_back(a[i].x); to_sort.push_back(a[i].y); to_sort.push_back(a[i].z); } sort(to_sort.begin(), to_sort.end()); for (int i = 0; i < to_sort.size(); ++i) { if (i == 0 || to_sort[i] != to_sort[i - 1]) { compressed[to_sort[i]] = ++curr_value; } } for (int i = 1; i <= n + q; ++i) { a[i].x = compressed[a[i].x]; a[i].y = compressed[a[i].y]; a[i].z = compressed[a[i].z]; } } int answers[maxn]; struct fenwick_tree { int tree[max_number + 5]; void update(int pos, int delta) { for (int i = pos; i <= max_number; i += (i & (-i))) { tree[i] += delta; } } int query(int pos) { int result = 0; for (int i = pos; i >= 1; i -= (i & (-i))) { result += tree[i]; } return result; } }; fenwick_tree bit; void fastIO() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); } int main() { fastIO(); cin >> n >> q; for (int i = 1; i <= n; ++i) { cin >> a[i].x >> a[i].y; a[i].z = a[i].x + a[i].y; } for (int i = 1; i <= q; ++i) { cin >> a[i + n].x >> a[i + n].y >> a[i + n].z; a[i + n].is_query = true; a[i + n].query_idx = i; } sort(a + 1, a + n + q + 1, [&](element fr, element sc) { return (fr.x > sc.x || (fr.x == sc.x && fr.is_query == false)); }); compress(); for (int i = 1; i <= n + q; ++i) { if (a[i].is_query == false) { bit.update(a[i].y, +1); } else { answers[a[i].query_idx] = (bit.query(max_number) - bit.query(a[i].y - 1)); } } for (int i = 1; i <= q; ++i) { cout << answers[i] << "\n"; } return 0; } /* 5 4 35 100 70 70 45 15 80 40 20 95 20 50 0 10 10 0 60 60 0 0 100 0 */

컴파일 시 표준 에러 (stderr) 메시지

examination.cpp:29:15: error: no matching function for call to 'element::element()'
   29 | element a[maxn];
      |               ^
examination.cpp:19:5: note: candidate: 'element::element(int, int, int, bool, int)'
   19 |     element(int _x, int _y, int _z, bool _is_query, int _query_idx)
      |     ^~~~~~~
examination.cpp:19:5: note:   candidate expects 5 arguments, 0 provided
examination.cpp:10:8: note: candidate: 'constexpr element::element(const element&)'
   10 | struct element
      |        ^~~~~~~
examination.cpp:10:8: note:   candidate expects 1 argument, 0 provided
examination.cpp:10:8: note: candidate: 'constexpr element::element(element&&)'
examination.cpp:10:8: note:   candidate expects 1 argument, 0 provided
examination.cpp: In function 'void compress()':
examination.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     for (int i = 0; i < to_sort.size(); ++i)
      |                     ~~^~~~~~~~~~~~~~~~