Submission #647113

#	Time	Username	Problem	Language	Result	Execution time	Memory
647113		ghostwriter	Cloud Computing (CEOI18_clo)	C++14	100 / 100	1710 ms	3556 KiB

clo

#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include <debug.h>
#else
#define debug(...)
#endif
#define ft front
#define bk back
#define st first
#define nd second
#define ins insert
#define ers erase
#define pb push_back
#define pf push_front
#define _pb pop_back
#define _pf pop_front
#define lb lower_bound
#define ub upper_bound
#define mtp make_tuple
#define bg begin
#define ed end
#define all(x) (x).bg(), (x).ed()
#define sz(x) (int)(x).size()
typedef long long ll; typedef unsigned long long ull;
typedef double db; typedef long double ldb;
typedef pair<int, int> pi; typedef pair<ll, ll> pll;
typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll;
typedef string str;
template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }
#define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
#define FOS(i, r, l) for (int (i) = (r); (i) >= (l); --(i))
#define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
#define FSN(i, n) for (int (i) = (n) - 1; (i) >= 0; --(i))
#define EACH(i, x) for (auto &(i) : (x))
#define WHILE while
#define file "TEST"
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); }
/*
----------------------------------------------------------------
    END OF TEMPLATE
----------------------------------------------------------------
    Tran The Bao - ghostwriter
    Training for VOI23 gold medal
----------------------------------------------------------------
    DIT ME CHUYEN BAO LOC
----------------------------------------------------------------
*/
struct Computer {
	int c, f, v;
	Computer() {}
	Computer(int c, int f, int v) : c(c), f(f), v(v) {}
};
#define Client Computer
bool cmp(Computer &a, Computer &b) { return a.f < b.f; }
const int N = 2001;
const int C = 51;
int n, m;
Computer a[N];
Client b[N];
ll d[N][C][2], d1[N][C][2];
signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    // freopen(file".inp", "r", stdin);
    // freopen(file".out", "w", stdout);
    cin >> n;
    FOR(i, 1, n) cin >> a[i].c >> a[i].f >> a[i].v;
    cin >> m;
    FOR(i, 1, m) cin >> b[i].c >> b[i].f >> b[i].v;
    sort(a + 1, a + 1 + n, cmp);
    sort(b + 1, b + 1 + m, cmp);
    FOR(i, 1, m) {
    	FOR(j, 1, n)
    	FOR(w, 0, 50)
    	FOR(stat, 0, 1) {
    		ll &rs = d[j][w][stat];
    		rs = 0;
    		if (stat) {
    			rs = max(rs, d1[j][w][1]);
				rs = max(rs, d[j - 1][b[i].c][0]);
    			if (a[j].f >= b[i].f) {
    				if (w < b[i].c) rs = max(rs, d[j - 1][b[i].c - w][0] - (w < a[j].c? 0 : a[j].v));
    				else rs = max(rs, d1[j][w - b[i].c][1] + b[i].v - (w < a[j].c? 0 : a[j].v));
    			}
    		}
    		else {
    			rs = max(rs, d[j - 1][w][0]);
    			if (a[j].f >= b[i].f) {
	    			if (a[j].c < w) rs = max(rs, d[j - 1][w - a[j].c][0] - a[j].v);
	    			else if (w) rs = max(rs, d1[j][a[j].c - w][1] + b[i].v - a[j].v);
    			}
    		}
    	}
    	FOR(j, 1, n)
    	FOR(w, 0, 50)
    	FOR(stat, 0, 1)
    		d1[j][w][stat] = d[j][w][stat];
    }
    cout << d[n][a[n].c][1];
    return 0;
}
/*
4
4 2200 700
2 1800 10
20 2550 9999
4 2000 750
3
1 1500 300
6 1900 1500
3 2400 4550
----------------------------------------------------------------
From Benq:
    stuff you should look for
        * int overflow, array bounds
        * special cases (n=1?)
        * do smth instead of nothing and stay organized
        * WRITE STUFF DOWN
        * DON'T GET STUCK ON ONE APPROACH
----------------------------------------------------------------
*/

Compilation message (stderr)

clo.cpp: In function 'int main()':
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:69:5: note: in expansion of macro 'FOR'
   69 |     FOR(i, 1, n) cin >> a[i].c >> a[i].f >> a[i].v;
      |     ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:71:5: note: in expansion of macro 'FOR'
   71 |     FOR(i, 1, m) cin >> b[i].c >> b[i].f >> b[i].v;
      |     ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:74:5: note: in expansion of macro 'FOR'
   74 |     FOR(i, 1, m) {
      |     ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:75:6: note: in expansion of macro 'FOR'
   75 |      FOR(j, 1, n)
      |      ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'w' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:76:6: note: in expansion of macro 'FOR'
   76 |      FOR(w, 0, 50)
      |      ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'stat' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:77:6: note: in expansion of macro 'FOR'
   77 |      FOR(stat, 0, 1) {
      |      ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:96:6: note: in expansion of macro 'FOR'
   96 |      FOR(j, 1, n)
      |      ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'w' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:97:6: note: in expansion of macro 'FOR'
   97 |      FOR(w, 0, 50)
      |      ^~~
clo.cpp:32:31: warning: unnecessary parentheses in declaration of 'stat' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
clo.cpp:98:6: note: in expansion of macro 'FOR'
   98 |      FOR(stat, 0, 1)
      |      ^~~

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10