oj.uz

Submission #1079449

# Submission time Handle Problem Language Result Execution time Memory
1079449 2024-08-28T14:53:59 Z LittleOrange Catfish Farm (IOI22_fish) C++17
18 / 100
 869 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 = b[i-2].size()-1;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 = b[i-3].size()-1;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:99:42: 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 = b[i-2].size()-1;k<b[i-2].size();k++){
      |                                         ~^~~~~~~~~~~~~~
fish.cpp:107:42: 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 = b[i-3].size()-1;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 45 ms 15156 KB Output is correct
3 Correct 7 ms 8024 KB Output is correct
4 Correct 7 ms 8120 KB Output is correct
5 Correct 145 ms 32516 KB Output is correct
6 Correct 153 ms 36688 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 100 ms 26944 KB Output is correct
3 Correct 125 ms 30316 KB Output is correct
4 Correct 37 ms 13872 KB Output is correct
5 Correct 47 ms 15156 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 Correct 0 ms 604 KB Output is correct
10 Correct 7 ms 8280 KB Output is correct
11 Correct 7 ms 8276 KB Output is correct
12 Correct 48 ms 18236 KB Output is correct
13 Correct 58 ms 20388 KB Output is correct
14 Correct 46 ms 17760 KB Output is correct
15 Correct 56 ms 18612 KB Output is correct
16 Correct 46 ms 18132 KB Output is correct
17 Correct 52 ms 19896 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 29 ms 12876 KB Output is correct
4 Correct 25 ms 12376 KB Output is correct
5 Correct 49 ms 17548 KB Output is correct
6 Correct 46 ms 16980 KB Output is correct
7 Correct 48 ms 17496 KB Output is correct
8 Correct 46 ms 17488 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 1 ms 432 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 Incorrect 3 ms 1372 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '799098388912'
11 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 1 ms 432 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 Incorrect 3 ms 1372 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '799098388912'
11 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 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 0 ms 348 KB Output is correct
6 Correct 1 ms 432 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 Incorrect 3 ms 1372 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '799098388912'
11 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 29 ms 12876 KB Output is correct
4 Correct 25 ms 12376 KB Output is correct
5 Correct 49 ms 17548 KB Output is correct
6 Correct 46 ms 16980 KB Output is correct
7 Correct 48 ms 17496 KB Output is correct
8 Correct 46 ms 17488 KB Output is correct
9 Runtime error 869 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 45 ms 15156 KB Output is correct
3 Correct 7 ms 8024 KB Output is correct
4 Correct 7 ms 8120 KB Output is correct
5 Correct 145 ms 32516 KB Output is correct
6 Correct 153 ms 36688 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 100 ms 26944 KB Output is correct
9 Correct 125 ms 30316 KB Output is correct
10 Correct 37 ms 13872 KB Output is correct
11 Correct 47 ms 15156 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 7 ms 8280 KB Output is correct
17 Correct 7 ms 8276 KB Output is correct
18 Correct 48 ms 18236 KB Output is correct
19 Correct 58 ms 20388 KB Output is correct
20 Correct 46 ms 17760 KB Output is correct
21 Correct 56 ms 18612 KB Output is correct
22 Correct 46 ms 18132 KB Output is correct
23 Correct 52 ms 19896 KB Output is correct
24 Correct 7 ms 8028 KB Output is correct
25 Correct 7 ms 9052 KB Output is correct
26 Correct 29 ms 12876 KB Output is correct
27 Correct 25 ms 12376 KB Output is correct
28 Correct 49 ms 17548 KB Output is correct
29 Correct 46 ms 16980 KB Output is correct
30 Correct 48 ms 17496 KB Output is correct
31 Correct 46 ms 17488 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 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 0 ms 348 KB Output is correct
37 Correct 1 ms 432 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 Incorrect 3 ms 1372 KB 1st lines differ - on the 1st token, expected: '799839985182', found: '799098388912'
42 Halted 0 ms 0 KB -