oj.uz

Submission #1079453

# Submission time Handle Problem Language Result Execution time Memory
1079453 2024-08-28T14:56:12 Z LittleOrange Catfish Farm (IOI22_fish) C++17
32 / 100
 903 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()),o.erase(unique(o.begin(),o.end()),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 44 ms 13616 KB Output is correct
2 Correct 46 ms 15052 KB Output is correct
3 Correct 7 ms 8024 KB Output is correct
4 Correct 7 ms 8168 KB Output is correct
5 Correct 145 ms 32876 KB Output is correct
6 Correct 143 ms 36984 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 104 ms 27292 KB Output is correct
3 Correct 119 ms 31600 KB Output is correct
4 Correct 37 ms 13628 KB Output is correct
5 Correct 49 ms 15152 KB Output is correct
6 Correct 1 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 0 ms 348 KB Output is correct
10 Correct 6 ms 8028 KB Output is correct
11 Correct 7 ms 8024 KB Output is correct
12 Correct 49 ms 19652 KB Output is correct
13 Correct 58 ms 20216 KB Output is correct
14 Correct 46 ms 17032 KB Output is correct
15 Correct 57 ms 18456 KB Output is correct
16 Correct 47 ms 17292 KB Output is correct
17 Correct 49 ms 19128 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8024 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 34 ms 12924 KB Output is correct
4 Correct 25 ms 11968 KB Output is correct
5 Correct 48 ms 17180 KB Output is correct
6 Correct 51 ms 16976 KB Output is correct
7 Correct 51 ms 17236 KB Output is correct
8 Correct 61 ms 17232 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 0 ms 348 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 1 ms 472 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 0 ms 436 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 0 ms 348 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 1 ms 472 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 154 ms 6236 KB Output is correct
18 Correct 142 ms 6536 KB Output is correct
19 Correct 103 ms 6232 KB Output is correct
20 Correct 75 ms 6232 KB Output is correct
21 Correct 73 ms 6484 KB Output is correct
22 Correct 256 ms 11092 KB Output is correct
23 Correct 21 ms 2396 KB Output is correct
24 Correct 123 ms 5312 KB Output is correct
25 Incorrect 2 ms 1112 KB 1st lines differ - on the 1st token, expected: '443843838929', found: '443838673362'
26 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 0 ms 348 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 1 ms 472 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 3 ms 600 KB Output is correct
17 Correct 154 ms 6236 KB Output is correct
18 Correct 142 ms 6536 KB Output is correct
19 Correct 103 ms 6232 KB Output is correct
20 Correct 75 ms 6232 KB Output is correct
21 Correct 73 ms 6484 KB Output is correct
22 Correct 256 ms 11092 KB Output is correct
23 Correct 21 ms 2396 KB Output is correct
24 Correct 123 ms 5312 KB Output is correct
25 Incorrect 2 ms 1112 KB 1st lines differ - on the 1st token, expected: '443843838929', found: '443838673362'
26 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8024 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 34 ms 12924 KB Output is correct
4 Correct 25 ms 11968 KB Output is correct
5 Correct 48 ms 17180 KB Output is correct
6 Correct 51 ms 16976 KB Output is correct
7 Correct 51 ms 17236 KB Output is correct
8 Correct 61 ms 17232 KB Output is correct
9 Runtime error 903 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 44 ms 13616 KB Output is correct
2 Correct 46 ms 15052 KB Output is correct
3 Correct 7 ms 8024 KB Output is correct
4 Correct 7 ms 8168 KB Output is correct
5 Correct 145 ms 32876 KB Output is correct
6 Correct 143 ms 36984 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 104 ms 27292 KB Output is correct
9 Correct 119 ms 31600 KB Output is correct
10 Correct 37 ms 13628 KB Output is correct
11 Correct 49 ms 15152 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 6 ms 8028 KB Output is correct
17 Correct 7 ms 8024 KB Output is correct
18 Correct 49 ms 19652 KB Output is correct
19 Correct 58 ms 20216 KB Output is correct
20 Correct 46 ms 17032 KB Output is correct
21 Correct 57 ms 18456 KB Output is correct
22 Correct 47 ms 17292 KB Output is correct
23 Correct 49 ms 19128 KB Output is correct
24 Correct 9 ms 8024 KB Output is correct
25 Correct 7 ms 9052 KB Output is correct
26 Correct 34 ms 12924 KB Output is correct
27 Correct 25 ms 11968 KB Output is correct
28 Correct 48 ms 17180 KB Output is correct
29 Correct 51 ms 16976 KB Output is correct
30 Correct 51 ms 17236 KB Output is correct
31 Correct 61 ms 17232 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 0 ms 348 KB Output is correct
37 Correct 0 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 472 KB Output is correct
41 Correct 2 ms 1372 KB Output is correct
42 Correct 1 ms 600 KB Output is correct
43 Correct 2 ms 1116 KB Output is correct
44 Correct 0 ms 436 KB Output is correct
45 Correct 2 ms 1116 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 3 ms 600 KB Output is correct
48 Correct 154 ms 6236 KB Output is correct
49 Correct 142 ms 6536 KB Output is correct
50 Correct 103 ms 6232 KB Output is correct
51 Correct 75 ms 6232 KB Output is correct
52 Correct 73 ms 6484 KB Output is correct
53 Correct 256 ms 11092 KB Output is correct
54 Correct 21 ms 2396 KB Output is correct
55 Correct 123 ms 5312 KB Output is correct
56 Incorrect 2 ms 1112 KB 1st lines differ - on the 1st token, expected: '443843838929', found: '443838673362'
57 Halted 0 ms 0 KB -