oj.uz

답안 #677111

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
677111 2023-01-02T10:08:37 Z Ninja_Kunai 메기 농장 (IOI22_fish) C++17
9 / 100
 86 ms 14388 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];
		memset(dp, 0, sizeof dp);
		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 22 ms 4076 KB Output is correct
2 Correct 38 ms 4940 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 86 ms 14388 KB Output is correct
6 Correct 85 ms 14352 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 50 ms 9284 KB Output is correct
3 Correct 58 ms 11192 KB Output is correct
4 Correct 22 ms 4052 KB Output is correct
5 Correct 27 ms 4948 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 25 ms 5448 KB Output is correct
13 Correct 31 ms 6456 KB Output is correct
14 Correct 24 ms 5532 KB Output is correct
15 Correct 27 ms 6088 KB Output is correct
16 Correct 24 ms 5452 KB Output is correct
17 Correct 26 ms 6084 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Incorrect 15 ms 3912 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 0 ms 212 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Incorrect 15 ms 3912 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 22 ms 4076 KB Output is correct
2 Correct 38 ms 4940 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 86 ms 14388 KB Output is correct
6 Correct 85 ms 14352 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 50 ms 9284 KB Output is correct
9 Correct 58 ms 11192 KB Output is correct
10 Correct 22 ms 4052 KB Output is correct
11 Correct 27 ms 4948 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 25 ms 5448 KB Output is correct
19 Correct 31 ms 6456 KB Output is correct
20 Correct 24 ms 5532 KB Output is correct
21 Correct 27 ms 6088 KB Output is correct
22 Correct 24 ms 5452 KB Output is correct
23 Correct 26 ms 6084 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 2 ms 980 KB Output is correct
26 Incorrect 15 ms 3912 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '21261432585312'
27 Halted 0 ms 0 KB -