제출 #549900

#제출 시각아이디문제언어결과실행 시간메모리
549900BalintRTeam Contest (JOI22_team)C++17
0 / 100
92 ms63052 KiB
#include <bits/stdc++.h> using namespace std; typedef unsigned uint; typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<pii> vpii; typedef complex<double> cmplx; template <typename T> using minPq = priority_queue<T, vector<T>, greater<T>>; #define boost() cin.sync_with_stdio(0); cin.tie(0) #define ms(a, x) memset(a, x, sizeof(a)) #define pb push_back #define fs first #define sn second #define ALL(v) (v).begin(), (v).end() #define SZ(v) ((int) (v).size()) #define lbv(v, x) (lower_bound((v).begin(), (v).end(), x) - (v).begin()) #define ubv(v, x) (upper_bound((v).begin(), (v).end(), x) - (v).begin()) template <typename T> inline void UNIQUE(vector<T> &v){sort(ALL(v)); v.resize(unique(ALL(v)) - v.begin());} const int INF = 0x3f3f3f3f; const ll LLINF = 0x3f3f3f3f3f3f3f3f; const double PI = acos(-1); #define FR(i, n) for(int i = 0; i < (n); i++) #define FOR(i, a, b) for(int i = (a); i < (b); i++) #define FORR(i, a, b) for(int i = (a); i >= (b); i--) #define dbg(x) {cout << #x << ' ' << x << endl;} #define dbgArr(arr, n) {cout << #arr; FR(_i, n) cout << ' ' << arr[_i]; cout << endl;} typedef array<int, 3> trip; const int MN = 4005; int n; vector<trip> vec; vpii compr; vi xs, ys; int arr[MN][MN]; int main(){ boost(); cin >> n; FR(i, n){ int a, b, c; cin >> a >> b >> c; vec.pb({a, b, c}); xs.pb(a); ys.pb(b); } xs.pb(0); ys.pb(0); UNIQUE(vec); UNIQUE(xs); UNIQUE(ys); for(auto [x, y, z] : vec){ x = lbv(xs, x); y = lbv(ys, y); compr.pb({x, y}); arr[x][y] = max(arr[x][y], z); } FOR(i, 1, MN) FOR(j, 1, MN){ arr[i][j] = max(arr[i][j], arr[i-1][j]); arr[i][j] = max(arr[i][j], arr[i][j-1]); } int ans = -1; n = SZ(vec); FR(i, n) FR(j, n){ if(vec[i][1] >= vec[j][1] || vec[j][0] >= vec[i][0]) continue; int mx = vec[i][0]; int my = vec[j][1]; int mz = arr[compr[j].fs-1][compr[i].sn-1]; ans = max(ans, mx+my+mz); } cout << ans << '\n'; }
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