oj.uz

Submission #1079447

# Submission time Handle Problem Language Result Execution time Memory
1079447 2024-08-28T14:53:22 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;
#define qry(i,l,r) (((i)<0||(i)>=n)?0:((r)>=0?preq[(i)][(r)]:0)-((l)>=0?preq[(i)][(l)]:0))
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]);
    }
  }
  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:89:19: 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]
   89 |     for(ll j = 0;j<b[i].size();j++){
      |                  ~^~~~~~~~~~~~
fish.cpp:91:21: 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]
   91 |       for(ll k = 0;k<b[i-1].size();k++){
      |                    ~^~~~~~~~~~~~~~
fish.cpp:99:28: 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]
   99 |       if(i>1)for(ll k = 0;k<b[i-2].size();k++){
      |                           ~^~~~~~~~~~~~~~
fish.cpp:107:28: 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]
  107 |       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 39 ms 13884 KB Output is correct
2 Correct 47 ms 15156 KB Output is correct
3 Correct 9 ms 8024 KB Output is correct
4 Correct 7 ms 8028 KB Output is correct
5 Correct 156 ms 32992 KB Output is correct
6 Correct 213 ms 36948 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 110 ms 26692 KB Output is correct
3 Correct 125 ms 30304 KB Output is correct
4 Correct 47 ms 13884 KB Output is correct
5 Correct 50 ms 15152 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 7 ms 8028 KB Output is correct
11 Correct 6 ms 8112 KB Output is correct
12 Correct 49 ms 19112 KB Output is correct
13 Correct 58 ms 21672 KB Output is correct
14 Correct 43 ms 18276 KB Output is correct
15 Correct 59 ms 19992 KB Output is correct
16 Correct 44 ms 18060 KB Output is correct
17 Correct 50 ms 18620 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 8024 KB Output is correct
2 Correct 8 ms 8816 KB Output is correct
3 Correct 31 ms 12876 KB Output is correct
4 Correct 23 ms 11988 KB Output is correct
5 Correct 50 ms 17492 KB Output is correct
6 Correct 42 ms 16976 KB Output is correct
7 Correct 55 ms 17488 KB Output is correct
8 Correct 45 ms 17492 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 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 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 2 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 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 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 2 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 10 ms 824 KB Output is correct
17 Correct 893 ms 7260 KB Output is correct
18 Correct 895 ms 7504 KB Output is correct
19 Correct 577 ms 7504 KB Output is correct
20 Correct 525 ms 7512 KB Output is correct
21 Correct 528 ms 7500 KB Output is correct
22 Execution timed out 1049 ms 13376 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 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 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 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 2 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 10 ms 824 KB Output is correct
17 Correct 893 ms 7260 KB Output is correct
18 Correct 895 ms 7504 KB Output is correct
19 Correct 577 ms 7504 KB Output is correct
20 Correct 525 ms 7512 KB Output is correct
21 Correct 528 ms 7500 KB Output is correct
22 Execution timed out 1049 ms 13376 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 8024 KB Output is correct
2 Correct 8 ms 8816 KB Output is correct
3 Correct 31 ms 12876 KB Output is correct
4 Correct 23 ms 11988 KB Output is correct
5 Correct 50 ms 17492 KB Output is correct
6 Correct 42 ms 16976 KB Output is correct
7 Correct 55 ms 17488 KB Output is correct
8 Correct 45 ms 17492 KB Output is correct
9 Runtime error 837 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 39 ms 13884 KB Output is correct
2 Correct 47 ms 15156 KB Output is correct
3 Correct 9 ms 8024 KB Output is correct
4 Correct 7 ms 8028 KB Output is correct
5 Correct 156 ms 32992 KB Output is correct
6 Correct 213 ms 36948 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 110 ms 26692 KB Output is correct
9 Correct 125 ms 30304 KB Output is correct
10 Correct 47 ms 13884 KB Output is correct
11 Correct 50 ms 15152 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 7 ms 8028 KB Output is correct
17 Correct 6 ms 8112 KB Output is correct
18 Correct 49 ms 19112 KB Output is correct
19 Correct 58 ms 21672 KB Output is correct
20 Correct 43 ms 18276 KB Output is correct
21 Correct 59 ms 19992 KB Output is correct
22 Correct 44 ms 18060 KB Output is correct
23 Correct 50 ms 18620 KB Output is correct
24 Correct 7 ms 8024 KB Output is correct
25 Correct 8 ms 8816 KB Output is correct
26 Correct 31 ms 12876 KB Output is correct
27 Correct 23 ms 11988 KB Output is correct
28 Correct 50 ms 17492 KB Output is correct
29 Correct 42 ms 16976 KB Output is correct
30 Correct 55 ms 17488 KB Output is correct
31 Correct 45 ms 17492 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 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 2 ms 1116 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 10 ms 824 KB Output is correct
48 Correct 893 ms 7260 KB Output is correct
49 Correct 895 ms 7504 KB Output is correct
50 Correct 577 ms 7504 KB Output is correct
51 Correct 525 ms 7512 KB Output is correct
52 Correct 528 ms 7500 KB Output is correct
53 Execution timed out 1049 ms 13376 KB Time limit exceeded
54 Halted 0 ms 0 KB -