oj.uz

Submission #645825

# Submission time Handle Problem Language Result Execution time Memory
645825 2022-09-28T06:21:22 Z ymm Catfish Farm (IOI22_fish) C++17
6 / 100
 163 ms 65872 KB 
#include "fish.h"
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const int N = 300'010;
ll dpu[N*2], dpd[N*2];
int n, m;
vector<pii> C[N];

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
	n = N; m = M;
	Loop (i,0,m)
		C[X[i]].push_back({Y[i], i});
	Loop (i,0,n) {
		C[i].push_back({-1, m});
		X.push_back(i);
		Y.push_back(-1);
		++m;
		C[i].push_back({n, m});
		X.push_back(i);
		Y.push_back(n);
		++m;
		sort(C[i].begin(), C[i].end());
	}
	W.resize(m, 0);

	// base
	Loop (i,0,C[0].size())
		dpu[C[0][i].second] = 0;
	dpd[C[0].front().second] = 0;
	Loop (i,1,C[0].size()) {
		int x = C[0][i].second;
		int y = C[0][i-1].second;
		dpd[x] = dpd[y] + W[x];
	}

	// second base
	dpu[C[1].back().second] = 0;
	int p = C[1].size()-1;
	LoopR (i,0,C[1].size()-1) {
		int x = C[1][i].second;
		int y = C[1][i+1].second;
		while (p > 0 && C[0][p-1].first > C[1][i].first)
			--p;
		dpu[x] = max(dpu[y], dpu[C[0][p].second]) + W[x];
	}
	dpd[C[1].front().second] = dpu[C[0].front().second];
	p = 0;
	Loop (i,1,C[1].size()) {
		int x = C[1][i].second;
		int y = C[1][i-1].second;
		while (p+1 < C[0].size() && C[0][p+1].first < C[1][i].first)
			++p;
		dpd[x] = max(dpd[y], dpd[C[0][p].second]) + W[x];
	}

	// update
	Loop (c,2,n) {
		dpu[C[c].back().second] = dpd[C[c-2].back().second];
		p = C[c].size()-1;
		LoopR (i,0,C[c].size()-1) {
			int x = C[c][i].second;
			int y = C[c][i+1].second;
			while (p > 0 && C[c-1][p-1].first > C[c][i].first)
				--p;
			dpu[x] = max(dpu[y], dpu[C[c-1][p].second]) + W[x];
		}
		dpd[C[c].front().second] = dpu[C[c-1].front().second];
		p = 0;
		Loop (i,1,C[c].size()) {
			int x = C[c][i].second;
			int y = C[c][i-1].second;
			while (p+1 < C[c-1].size() && C[c-1][p+1].first < C[c][i].first)
				++p;
			dpd[x] = max(dpd[y], dpd[C[c-1][p].second]) + W[x];
		}
	}

	// debug
	//Loop (i,0,m) {
	//	cout << "[" << X[i] << ' ' << Y[i] << ' ' << W[i] << "]: " << dpu[i] << ' ' << dpd[i] << '\n';
	//}

	// ans
	ll ans = max(dpu[C[n-1].front().second], dpd[C[n-2].back().second]);
	return ans;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:3:40: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    3 | #define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
      |                                        ^
fish.cpp:34:2: note: in expansion of macro 'Loop'
   34 |  Loop (i,0,C[0].size())
      |  ^~~~
fish.cpp:3:40: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    3 | #define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
      |                                        ^
fish.cpp:37:2: note: in expansion of macro 'Loop'
   37 |  Loop (i,1,C[0].size()) {
      |  ^~~~
fish.cpp:3:40: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    3 | #define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
      |                                        ^
fish.cpp:55:2: note: in expansion of macro 'Loop'
   55 |  Loop (i,1,C[1].size()) {
      |  ^~~~
fish.cpp:58:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |   while (p+1 < C[0].size() && C[0][p+1].first < C[1][i].first)
      |          ~~~~^~~~~~~~~~~~~
fish.cpp:3:40: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    3 | #define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
      |                                        ^
fish.cpp:76:3: note: in expansion of macro 'Loop'
   76 |   Loop (i,1,C[c].size()) {
      |   ^~~~
fish.cpp:79:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |    while (p+1 < C[c-1].size() && C[c-1][p+1].first < C[c][i].first)
      |           ~~~~^~~~~~~~~~~~~~~

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 20136 KB Output is correct
2 Correct 67 ms 22200 KB Output is correct
3 Correct 17 ms 15944 KB Output is correct
4 Correct 16 ms 15932 KB Output is correct
5 Runtime error 163 ms 65872 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7356 KB Output is correct
2 Correct 84 ms 25268 KB Output is correct
3 Correct 97 ms 28580 KB Output is correct
4 Correct 47 ms 20052 KB Output is correct
5 Correct 65 ms 22076 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 3 ms 7252 KB Output is correct
9 Correct 3 ms 7240 KB Output is correct
10 Correct 16 ms 15888 KB Output is correct
11 Correct 17 ms 15932 KB Output is correct
12 Correct 46 ms 19980 KB Output is correct
13 Correct 55 ms 22152 KB Output is correct
14 Correct 50 ms 20024 KB Output is correct
15 Correct 54 ms 21488 KB Output is correct
16 Correct 47 ms 19984 KB Output is correct
17 Correct 60 ms 21520 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 15932 KB Output is correct
2 Correct 17 ms 15888 KB Output is correct
3 Incorrect 41 ms 19060 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '20897672610412'
4 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Correct 5 ms 7364 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Incorrect 4 ms 7380 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '214837477243'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Correct 5 ms 7364 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Incorrect 4 ms 7380 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '214837477243'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 3 ms 7252 KB Output is correct
7 Correct 5 ms 7364 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Incorrect 4 ms 7380 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '214837477243'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 15932 KB Output is correct
2 Correct 17 ms 15888 KB Output is correct
3 Incorrect 41 ms 19060 KB 1st lines differ - on the 1st token, expected: '21261825233649', found: '20897672610412'
4 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 20136 KB Output is correct
2 Correct 67 ms 22200 KB Output is correct
3 Correct 17 ms 15944 KB Output is correct
4 Correct 16 ms 15932 KB Output is correct
5 Runtime error 163 ms 65872 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -