oj.uz

답안 #677110

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
677110 2023-01-02T10:05:59 Z Ninja_Kunai 메기 농장 (IOI22_fish) C++17
9 / 100
 130 ms 21036 KB 
/**
*    Author :  Nguyen Tuan Vu
*    Created : 01.01.2023
**/

#pragma GCC optimize("O2")
#pragma GCC target("avx,avx2,fma")
#include<bits/stdc++.h>
#define MASK(x) ((1ll)<<(x))
#define BIT(x, i) (((x)>>(i))&(1))
#define ALL(v)  (v).begin(), (v).end()
#define REP(i, n)  for (int i = 0, _n = (n); i < _n; ++i)
#define FOR(i, a, b)  for (int i = (a), _b = (b); i <= _b; ++i) 
#define FORD(i, b, a)  for (int i = (b), _a = (a); i >= _a; --i)
#define db(val) "["#val" = "<<(val)<<"] "

template <class X, class Y> bool minimize(X &a, Y b) {
    if (a > b) return a = b, true;
    return false;
}
template <class X, class Y> bool maximize(X &a, Y b) {
    if (a < b) return a = b, true;
    return false;
}

using namespace std;

mt19937 jdg(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int l, int r) {return l + jdg() % (r - l + 1);}

const int N = 1e5 + 5;
namespace sub1 {
	bool check(int m, vector <array <int, 3>> fishes) {
		REP(i, m) {
			if (fishes[i][0] & 1) return false;
		}

		return true;
	}

	long long solve(int m, vector <array <int, 3>> fishes) {
		//assert(1 == 0);
		long long ans = 0;
		REP(i, m) ans += fishes[i][2];
		return ans;
	}
}

namespace sub2 {
	bool check(int m, vector <array <int, 3>> fishes) {
		REP(i, m) if (fishes[i][0] > 1) return false;
		return true;
	}

	long long solve(int n, int m, vector <array <int, 3>> fishes) {
		//assert(1 == 0);
		if (n == 2) {
			long long ans[2] = {0};
			REP(i, m) ans[fishes[i][0]] += fishes[i][2];
			return max(ans[0], ans[1]);
		}

		vector <long long> sum[2];
		REP(i, 2) sum[i].resize(n + 7, 0);
		REP(i, m) sum[fishes[i][0]][fishes[i][1]] += fishes[i][2];
		FOR(i, 1, n - 1) REP(j, 2) sum[j][i] = sum[j][i - 1] + sum[j][i];
		long long ans = sum[1][n - 1];
		REP(i, n) maximize(ans, sum[0][i] + sum[1][n - 1] - sum[1][i]);
		return ans;
	}
}

namespace sub3 {
	bool check(int m, vector <array <int, 3>> fishes) {
		REP(i, m) if (fishes[i][1] != 0) return false;
		return true;
	}

	int cost[N];
	long long dp[N];

	long long solve(int n, int m, vector <array <int, 3>> fishes) {
		REP(i, m) cost[fishes[i][0] + 1] = fishes[i][2];
		FOR(i, 1, n) {
			if (i > 1) maximize(dp[i], dp[i - 1]);
			if (i > 2) maximize(dp[i], dp[i - 2] + cost[i - 1]);
			if (i > 3) maximize(dp[i], dp[i - 3] + cost[i - 1] + cost[i - 2]);
		}

		long long ans = 0;
		FOR(i, 1, n) {
			dp[i] = dp[i] + cost[i + 1];
			maximize(ans, dp[i]);
		}

		return ans;
	}
}

long long max_weights(int n, int m, vector <int> X, vector <int> Y, vector <int> W) {
	vector <array <int, 3>> fishes;
	fishes.resize(m + 7);
	REP(i, m) fishes[i] = {X[i], Y[i], W[i]};

	if (sub1::check(m, fishes)) return sub1::solve(m, fishes);
	else if (sub2::check(m, fishes)) return sub2::solve(n, m, fishes);
	else if (sub3::check(m, fishes)) return sub3::solve(n, m, fishes);
	return 0;
}

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 5452 KB Output is correct
2 Correct 29 ms 6716 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 109 ms 20756 KB Output is correct
6 Correct 130 ms 21036 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 49 ms 12080 KB Output is correct
3 Correct 61 ms 14636 KB Output is correct
4 Correct 23 ms 5472 KB Output is correct
5 Correct 32 ms 6728 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 33 ms 6836 KB Output is correct
13 Correct 32 ms 8224 KB Output is correct
14 Correct 27 ms 6832 KB Output is correct
15 Correct 30 ms 7600 KB Output is correct
16 Correct 25 ms 6932 KB Output is correct
17 Correct 28 ms 7624 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Incorrect 16 ms 4780 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21261432585312'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '0'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '0'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '0'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Incorrect 16 ms 4780 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21261432585312'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 5452 KB Output is correct
2 Correct 29 ms 6716 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 109 ms 20756 KB Output is correct
6 Correct 130 ms 21036 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 49 ms 12080 KB Output is correct
9 Correct 61 ms 14636 KB Output is correct
10 Correct 23 ms 5472 KB Output is correct
11 Correct 32 ms 6728 KB Output is correct
12 Correct 1 ms 312 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 33 ms 6836 KB Output is correct
19 Correct 32 ms 8224 KB Output is correct
20 Correct 27 ms 6832 KB Output is correct
21 Correct 30 ms 7600 KB Output is correct
22 Correct 25 ms 6932 KB Output is correct
23 Correct 28 ms 7624 KB Output is correct
24 Correct 1 ms 308 KB Output is correct
25 Correct 1 ms 980 KB Output is correct
26 Incorrect 16 ms 4780 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21261432585312'
27 Halted 0 ms 0 KB -