제출 #514557

#제출 시각아이디문제언어결과실행 시간메모리
514557amunduzbaevAmusement Park (JOI17_amusement_park)C++14
컴파일 에러
0 ms0 KiB
#include "bits/stdc++.h" using namespace std; #define ar array const int N = 2005; long double const eps = 1e-16; struct ST{ ar<long long, 4> tree[N * 4]; void merge(ar<long long, 4>& x, ar<long long, 4>& a, ar<long long, 4>& b){ x[0] = max({a[0], b[0], a[2] + b[1]}); x[1] = max({a[1], a[3] + b[1]}); x[2] = max({b[2], b[3] + a[2]}); x[3] = a[3] + b[3]; } void sett(int i, int v, int lx = 0, int rx = N, int x = 1){ if(lx == rx){ tree[x] = {max(v, 0), max(v, 0), max(v, 0), v}; return; } int m = (lx + rx) >> 1; if(i <= m) sett(i, v, lx, m, x<<1); else sett(i, v, m+1, rx, x<<1|1); merge(tree[x], tree[x<<1], tree[x<<1|1]); } }tree; /* 5 5 1 5 4 2 2 3 3 -2 2 4 3 1 5 -1 6 2 2 10 4 1 10 5 2 10 2 5 10 4 4 -5 5 5 10 */ long long res; bool operator < (pair<pair<int, int>, pair<int, int>>& a, pair<pair<int, int>, pair<int, int>>& b){ return (a.first.first * b.first.second < b.first.first * a.first.second); } void check(vector<ar<int, 3>>& a, int n){ sort(a.begin(), a.end(), [&](auto& a, auto& b){ if(a[0] != b[0]) return a[0] < b[0]; return a[1] > b[1]; }); vector<pair<pair<int, int>, pair<int, int>>> tt; for(int i=0;i<n;i++){ for(int j=i+1;j<n;j++){ if(a[i][0] == a[j][0]) continue; tt.push_back({{a[j][1] - a[i][1], a[i][0] - a[j][0]}, {i, j}}); } } vector<int> pos(n), used(n); for(int i=0;i<n;i++) pos[i] = i, tree.sett(i, a[i][2]); res = max(res, tree.tree[1][0]); sort(tt.begin(), tt.end()); //{ for(int l=0;l<(int)tt.size();){ int k = l; while(k < (int)tt.size() && !(tt[l] < tt[k])){ auto [i, j] = tt[k].second; k++; swap(pos[i], pos[j]); tree.sett(pos[i], a[i][2]), tree.sett(pos[j], a[j][2]); } while(l < k) used[tt[l].second.first] = used[tt[l].second.second] = 0, l++; res = max(res, tree.tree[1][0]); } } signed main(){ ios::sync_with_stdio(0); cin.tie(0); int n; cin>>n; vector<ar<int, 3>> a(n); for(int i=0;i<n;i++){ cin>>a[i][0]>>a[i][1]>>a[i][2]; } check(a, n); for(auto& x : a) swap(x[0], x[1]); check(a, n); cout<<res<<"\n"; }

컴파일 시 표준 에러 (stderr) 메시지

Joi.cpp: In function 'void check(std::vector<std::array<int, 3> >&, int)':
Joi.cpp:72:9: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   72 |    auto [i, j] = tt[k].second; k++;
      |         ^
/usr/bin/ld: /tmp/ccS6Cqkd.o: in function `main':
grader_joi.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccPDzHgc.o:Joi.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccS6Cqkd.o: in function `main':
grader_joi.cpp:(.text.startup+0x1ae): undefined reference to `Joi(int, int, int*, int*, long long, int)'
collect2: error: ld returned 1 exit status

/usr/bin/ld: /tmp/ccRDGhsZ.o: in function `main':
grader_ioi.cpp:(.text.startup+0x3f2): undefined reference to `Ioi(int, int, int*, int*, int, int, int)'
collect2: error: ld returned 1 exit status