oj.uz

Submission #1079446

# Submission time Handle Problem Language Result Execution time Memory
1079446 2024-08-28T14:50:56 Z LittleOrange Catfish Farm (IOI22_fish) C++17
32 / 100
 1000 ms 2097152 KB 
#include "fish.h"

#include <vector>
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const ll big = 1e18;

long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y,
                      std::vector<int> w) {
  ll sub1 = 1, sub2 = 1, sub3 = 1;
  vector<vector<pair<ll,ll>>> a(n+1);
  vector<vector<ll>> b(n+1,vector<ll>(1,-1));
  for(ll i = 0;i<m;i++){
    a[x[i]].push_back({y[i],w[i]});
    if(x[i]) b[x[i]-1].push_back(y[i]);
    b[x[i]+1].push_back(y[i]);
    b[x[i]].push_back(y[i]);
    if(x[i]&1) sub1 = 0;
    if(x[i]>1) sub2 = 0;
    if(y[i]) sub3 = 0;
  }
  //cerr << sub1 << " " << sub2 << " " << sub3 << "\n";
  for(auto &o : a) sort(o.begin(),o.end());
  for(auto &o : b) sort(o.begin(),o.end());
  if (sub1){
    ll ans = 0;
    for(ll i : w) ans += i;
    return ans;
  }
  if(sub2){
    ll a1 = 0, a2 = 0;
    vector<array<ll,3>> o;
    for(auto [p,v] : a[0]) a1+=v,o.push_back({p,1,v});
    for(auto [p,v] : a[1]) a2+=v,o.push_back({p,0,v});
    ll ans = max(a1,a2);
    if(n>2){
      sort(o.begin(),o.end());
      ll dp0 = 0, dp1 = 0;
      for(auto &u : o){
        if (u[1]){
          dp0 += u[2];
          dp1 = max(dp1,dp0);
        }else{
          dp1 += u[2];
        }
      }
      ans = max(ans,dp1);
    }
    return ans;
  }
  if (sub3){
    ll ans = 0;
    for(ll i : w) ans += i;
    vector<ll> dp(n+1,big);
    dp[0] = 0;
    for(ll i = 0;i<n;i++){
      ll cur = a[i].size()?a[i][0].second:0;
      dp[i+1] = min(dp[i+1],dp[i]+cur);
      if(i>=1)dp[i+1] = min(dp[i+1],dp[i-1]+cur);
      if(i>=3)dp[i+1] = min(dp[i+1],dp[i-2]+cur);
    }
    //for(ll i = 0;i<=n;i++) cerr << dp[i] << " \n"[i==n];
    ll de = min(dp.back(),dp.end()[-2]);
    return ans-de;
  }
  vector<vector<ll>> dp = b;
  for(auto &o : dp)fill(o.begin(),o.end(),0);
  vector<vector<ll>> dp0 = dp;
  for(auto &o : a){
    for(ll i = 1;i<o.size();i++){
      o[i].second += o[i-1].second;
    }
  }
  //for(auto &o : b){
  //  for(ll i = 0;i<o.size();i++) cout << o[i] << " \n"[i+1==o.size()];
  //}
  vector<vector<ll>> preq(n,vector<ll>(n+5,0));
  for(ll i = 0;i<n;i++){
    for(auto [p,v] : a[i]){
      preq[i][p] = v;
    }
    for(ll j = 1;j<n+5;j++){
      preq[i][j] = max(preq[i][j],preq[i][j-1]);
    }
  }
  auto qry = [&](ll i, ll l, ll r){
    if(i<0||i>=n) return 0ll;
    //auto &o = a[i];
    //auto v1 = lower_bound(o.begin(),o.end(),make_pair(l+1,0ll));
    //auto v2 = lower_bound(o.begin(),o.end(),make_pair(r+1,0ll));
    //cerr << "qry " << i << " " << l << " " << r << "\n";
    ll g1 = l>=0?preq[i][l]:0;
    ll g2 = r>=0?preq[i][r]:0;
    //cerr << "qry " << i << " " << l << " " << r << " = " << g2-g1 << "\n";
    return g2-g1;
  };
  ll ans = 0;
  for(ll i = 1;i<n;i++){
    for(ll j = 0;j<b[i].size();j++){
      ll y = b[i][j];
      for(ll k = 0;k<b[i-1].size();k++){
        ll y0 = b[i-1][k];
        ll cur = dp0[i-1][k];
        if(y0<y) cur += qry(i-1,y0,y);
        dp0[i][j] = max(dp0[i][j],cur);
        if(y0>y) cur += qry(i,y,y0);
        dp[i][j] = max(dp[i][j],cur);
      }
      if(i>1)for(ll k = 0;k<b[i-2].size();k++){
        ll y0 = b[i-2][k];
        ll cur = dp[i-2][k];
        ll h = max(y,y0);
        cur += qry(i-1,-1,h);
        dp[i][j] = max(dp[i][j],cur);
        dp0[i][j] = max(dp0[i][j],cur);
      }
      if(i>2)for(ll k = 0;k<b[i-3].size();k++){
        ll y0 = b[i-3][k];
        ll cur = dp[i-3][k];
        cur += qry(i-2,-1,y0);
        cur += qry(i-1,-1,y);
        dp[i][j] = max(dp[i][j],cur);
        dp0[i][j] = max(dp0[i][j],cur);
      }
      ans = max(ans,dp[i][j]+qry(i+1,-1,y));
      ans = max(ans,dp0[i][j]+qry(i+1,-1,y));
      //cerr << "dp " << i << " " << j << " = " << dp[i][j] << "\n";
    }
  }
  return ans;
  return 0;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:71:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for(ll i = 1;i<o.size();i++){
      |                  ~^~~~~~~~~
fish.cpp:100:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |     for(ll j = 0;j<b[i].size();j++){
      |                  ~^~~~~~~~~~~~
fish.cpp:102:21: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |       for(ll k = 0;k<b[i-1].size();k++){
      |                    ~^~~~~~~~~~~~~~
fish.cpp:110:28: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |       if(i>1)for(ll k = 0;k<b[i-2].size();k++){
      |                           ~^~~~~~~~~~~~~~
fish.cpp:118:28: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  118 |       if(i>2)for(ll k = 0;k<b[i-3].size();k++){
      |                           ~^~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 13880 KB Output is correct
2 Correct 46 ms 15164 KB Output is correct
3 Correct 6 ms 8028 KB Output is correct
4 Correct 6 ms 8028 KB Output is correct
5 Correct 141 ms 32992 KB Output is correct
6 Correct 148 ms 36944 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 96 ms 28440 KB Output is correct
3 Correct 143 ms 31608 KB Output is correct
4 Correct 36 ms 13620 KB Output is correct
5 Correct 44 ms 15164 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 8 ms 8024 KB Output is correct
11 Correct 7 ms 8028 KB Output is correct
12 Correct 46 ms 18344 KB Output is correct
13 Correct 57 ms 20244 KB Output is correct
14 Correct 43 ms 17760 KB Output is correct
15 Correct 55 ms 19372 KB Output is correct
16 Correct 43 ms 18368 KB Output is correct
17 Correct 52 ms 18540 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 8028 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 27 ms 12880 KB Output is correct
4 Correct 23 ms 12004 KB Output is correct
5 Correct 43 ms 17364 KB Output is correct
6 Correct 42 ms 16976 KB Output is correct
7 Correct 52 ms 17476 KB Output is correct
8 Correct 58 ms 17436 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1372 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1372 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 2 ms 1116 KB Output is correct
16 Correct 10 ms 824 KB Output is correct
17 Correct 746 ms 7260 KB Output is correct
18 Correct 900 ms 7612 KB Output is correct
19 Correct 526 ms 7512 KB Output is correct
20 Correct 525 ms 7512 KB Output is correct
21 Correct 524 ms 7248 KB Output is correct
22 Execution timed out 1032 ms 13392 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 3 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1372 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 2 ms 1116 KB Output is correct
16 Correct 10 ms 824 KB Output is correct
17 Correct 746 ms 7260 KB Output is correct
18 Correct 900 ms 7612 KB Output is correct
19 Correct 526 ms 7512 KB Output is correct
20 Correct 525 ms 7512 KB Output is correct
21 Correct 524 ms 7248 KB Output is correct
22 Execution timed out 1032 ms 13392 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 8028 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 27 ms 12880 KB Output is correct
4 Correct 23 ms 12004 KB Output is correct
5 Correct 43 ms 17364 KB Output is correct
6 Correct 42 ms 16976 KB Output is correct
7 Correct 52 ms 17476 KB Output is correct
8 Correct 58 ms 17436 KB Output is correct
9 Runtime error 910 ms 2097152 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 13880 KB Output is correct
2 Correct 46 ms 15164 KB Output is correct
3 Correct 6 ms 8028 KB Output is correct
4 Correct 6 ms 8028 KB Output is correct
5 Correct 141 ms 32992 KB Output is correct
6 Correct 148 ms 36944 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 96 ms 28440 KB Output is correct
9 Correct 143 ms 31608 KB Output is correct
10 Correct 36 ms 13620 KB Output is correct
11 Correct 44 ms 15164 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 8 ms 8024 KB Output is correct
17 Correct 7 ms 8028 KB Output is correct
18 Correct 46 ms 18344 KB Output is correct
19 Correct 57 ms 20244 KB Output is correct
20 Correct 43 ms 17760 KB Output is correct
21 Correct 55 ms 19372 KB Output is correct
22 Correct 43 ms 18368 KB Output is correct
23 Correct 52 ms 18540 KB Output is correct
24 Correct 7 ms 8028 KB Output is correct
25 Correct 7 ms 9052 KB Output is correct
26 Correct 27 ms 12880 KB Output is correct
27 Correct 23 ms 12004 KB Output is correct
28 Correct 43 ms 17364 KB Output is correct
29 Correct 42 ms 16976 KB Output is correct
30 Correct 52 ms 17476 KB Output is correct
31 Correct 58 ms 17436 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 3 ms 1372 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 2 ms 1372 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 1116 KB Output is correct
46 Correct 2 ms 1116 KB Output is correct
47 Correct 10 ms 824 KB Output is correct
48 Correct 746 ms 7260 KB Output is correct
49 Correct 900 ms 7612 KB Output is correct
50 Correct 526 ms 7512 KB Output is correct
51 Correct 525 ms 7512 KB Output is correct
52 Correct 524 ms 7248 KB Output is correct
53 Execution timed out 1032 ms 13392 KB Time limit exceeded
54 Halted 0 ms 0 KB -