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답안 #1046758

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1046758 2024-08-06T21:35:12 Z Trent 메기 농장 (IOI22_fish) C++17
0 / 100
 344 ms 169024 KB 
#include "fish.h"
#include "bits/stdc++.h";
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<int> vi;
typedef vector<vi> vvi;
struct pii{int a, b;};

ll INF = 1e16;

ll rSum(int i, vector<pii>& wx, vll& psa) {
  int ind = upper_bound(all(wx), i, [](int a, pii b){return a < b.a;}) - wx.begin();
  if(ind - 1 == -1) return 0;
  return psa[ind-1];
}

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
  vector<vector<pii>> wx(N);
  forR(i, M) wx[X[i]].push_back({Y[i], W[i]});
  forR(i, N) sort(all(wx[i]), [](pii a, pii b){return a.a < b.a;});
  vvll wpsa(N);
  forR(i, N) if(!wx[i].empty()) {
    wpsa[i].push_back(wx[i][0].b);
    REP(j, 1, wx[i].size()) wpsa[i].push_back(wx[i][j].b + wpsa[i].back());
  }

  vector<set<int>> sidPos(N), sePos(N);
  forR(i, M) {
    if(X[i] > 0) sidPos[X[i]-1].insert(Y[i] + 1);
    if(X[i] + 1 < N) sidPos[X[i] + 1].insert(Y[i] + 1);
    if(X[i] > 1) sidPos[X[i]-2].insert(Y[i] + 1);
    if(X[i] + 2 < N) sidPos[X[i] + 2].insert(Y[i] + 1);
    sidPos[X[i]].insert(Y[i]+1);

    if(X[i] > 0) sePos[X[i]-1].insert(Y[i] + 1);
    if(X[i] + 1 < N) sePos[X[i] + 1].insert(Y[i] + 1);
    if(X[i] > 1) sePos[X[i]-2].insert(Y[i] + 1);
    if(X[i] + 2 < N) sePos[X[i] + 2].insert(Y[i] + 1);
    sePos[X[i]].insert(Y[i]+1);
  }
  forR(i, N) {
    sePos[i].insert(0);
  }
  vector<vi> idPos(N), ePos(N);
  forR(i, N) {
    for(int j : sidPos[i]) idPos[i].push_back(j);
    for(int j : sePos[i]) ePos[i].push_back(j);
  }
  vvll I(N), D(N), E(N);
  forR(i, N) I[i].resize(idPos[i].size()), D[i].resize(idPos[i].size()), E[i].resize(ePos[i].size());
  // h = HEIGHT, not the index of last element!
  forR(i, N) {
    ll besIE = -INF, besII = -INF;
    if(i > 0) {
      forR(ki, ePos[i-1].size()) {
        int k = ePos[i-1][ki];
        besIE = max(besIE, E[i-1][ki] - rSum(k-1, wx[i-1], wpsa[i-1]));
      }
    }
    int api = 0;
    forR(hi, idPos[i].size()) {
      int h = idPos[i][hi];
      if(h > 0) {
        if(i == 0) I[i][hi] = 0;
        else {
          I[i][hi] = max(I[i][hi], besIE + rSum(h-1, wx[i-1], wpsa[i-1]));
          while(api < idPos[i-1].size() && idPos[i-1][api] <= h) {
            int k = idPos[i-1][api];
            besII = max(besII, I[i-1][api] - rSum(k-1, wx[i-1], wpsa[i-1]));
            ++api;
          }
          I[i][hi] = max(I[i][hi], besII + rSum(h-1, wx[i-1], wpsa[i-1]));
        }
      }
    }

    api = (int) idPos[i-1].size() - 1;
    ll besD = -INF;
    for(int hi = (int) idPos[i].size() - 1; hi >= 0; --hi){
      int h = idPos[i][hi];
      if(h > 0) {
        if(i == 0) D[i][hi] = 0;
        else {
          while(api >= 0 && idPos[i-1][api] >= h + 1) {
            int k = idPos[i-1][api];
            besD = max(besD, max(I[i-1][api], D[i-1][api]) + rSum(k-1, wx[i], wpsa[i]));
            --api;
          }
          D[i][hi] = max(D[i][hi], besD - rSum(h-1, wx[i], wpsa[i]));
        }
      }
    }

    ll besE = -INF;
    if(i > 0) {
      forR(yi, ePos[i-1].size()) besE = max(besE, E[i-1][yi]);
    }
    forR(hi, ePos[i].size()){
      int h = ePos[i][hi];
      if(i == 0) E[i][hi] = 0;
      else {
        int pi = lower_bound(all(idPos[i-1]), h) - idPos[i-1].begin();
        if(idPos[i-1][pi] == h) {
          ll tot = max(I[i-1][pi], D[i-1][pi]) + rSum(h-1, wx[i], wpsa[i]);
          E[i][hi] = max(E[i][hi], max(tot, besE));
        }
      }
    }
  }
  ll mx = 0;
  forR(hi, idPos[N-1].size()) mx = max(mx, max(I[N-1][hi], D[N-1][hi]));
  forR(hi, ePos[N-1].size()) mx = max(mx, E[N-1][hi]);
  return mx;
}

Compilation message

fish.cpp:2:25: warning: extra tokens at end of #include directive
    2 | #include "bits/stdc++.h";
      |                         ^
fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:5:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pii>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define REP(i, a, b) for(int i = (a); i < (b); ++i)
      |                                         ^
fish.cpp:30:5: note: in expansion of macro 'REP'
   30 |     REP(j, 1, wx[i].size()) wpsa[i].push_back(wx[i][j].b + wpsa[i].back());
      |     ^~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:61:7: note: in expansion of macro 'forR'
   61 |       forR(ki, ePos[i-1].size()) {
      |       ^~~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:67:5: note: in expansion of macro 'forR'
   67 |     forR(hi, idPos[i].size()) {
      |     ^~~~
fish.cpp:73:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |           while(api < idPos[i-1].size() && idPos[i-1][api] <= h) {
      |                 ~~~~^~~~~~~~~~~~~~~~~~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:102:7: note: in expansion of macro 'forR'
  102 |       forR(yi, ePos[i-1].size()) besE = max(besE, E[i-1][yi]);
      |       ^~~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:104:5: note: in expansion of macro 'forR'
  104 |     forR(hi, ePos[i].size()){
      |     ^~~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:117:3: note: in expansion of macro 'forR'
  117 |   forR(hi, idPos[N-1].size()) mx = max(mx, max(I[N-1][hi], D[N-1][hi]));
      |   ^~~~
fish.cpp:4:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                     ^
fish.cpp:118:3: note: in expansion of macro 'forR'
  118 |   forR(hi, ePos[N-1].size()) mx = max(mx, E[N-1][hi]);
      |   ^~~~

Subtask #1
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 168 ms 135496 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 344 ms 169024 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 36 ms 75000 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 1 ms 592 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '199904465818'
10 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 1 ms 592 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '199904465818'
10 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 1 ms 592 KB 1st lines differ - on the 1st token, expected: '216624184325', found: '199904465818'
10 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 36 ms 75000 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 168 ms 135496 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -