oj.uz

Submission #1079451

# Submission time Handle Problem Language Result Execution time Memory
1079451 2024-08-28T14:55:30 Z LittleOrange Catfish Farm (IOI22_fish) C++17
32 / 100
 867 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 = 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 = 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:99:42: 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:107:28: 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 13624 KB Output is correct
2 Correct 47 ms 15156 KB Output is correct
3 Correct 6 ms 8272 KB Output is correct
4 Correct 8 ms 8028 KB Output is correct
5 Correct 144 ms 33036 KB Output is correct
6 Correct 143 ms 37064 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 109 ms 27920 KB Output is correct
3 Correct 120 ms 31340 KB Output is correct
4 Correct 38 ms 13620 KB Output is correct
5 Correct 50 ms 15412 KB Output is correct
6 Correct 0 ms 604 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 600 KB Output is correct
10 Correct 8 ms 8028 KB Output is correct
11 Correct 6 ms 8028 KB Output is correct
12 Correct 48 ms 19376 KB Output is correct
13 Correct 59 ms 21532 KB Output is correct
14 Correct 46 ms 17544 KB Output is correct
15 Correct 59 ms 19516 KB Output is correct
16 Correct 48 ms 18064 KB Output is correct
17 Correct 54 ms 19896 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8028 KB Output is correct
2 Correct 7 ms 9048 KB Output is correct
3 Correct 32 ms 12884 KB Output is correct
4 Correct 23 ms 11864 KB Output is correct
5 Correct 56 ms 17308 KB Output is correct
6 Correct 54 ms 16976 KB Output is correct
7 Correct 56 ms 17236 KB Output is correct
8 Correct 55 ms 17232 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 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 604 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 1116 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 348 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 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 604 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 109 ms 6236 KB Output is correct
18 Correct 101 ms 6480 KB Output is correct
19 Correct 72 ms 6236 KB Output is correct
20 Correct 57 ms 6232 KB Output is correct
21 Correct 59 ms 6224 KB Output is correct
22 Correct 193 ms 11092 KB Output is correct
23 Correct 15 ms 2396 KB Output is correct
24 Correct 86 ms 5212 KB Output is correct
25 Incorrect 2 ms 1116 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 348 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 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 604 KB Output is correct
10 Correct 2 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 109 ms 6236 KB Output is correct
18 Correct 101 ms 6480 KB Output is correct
19 Correct 72 ms 6236 KB Output is correct
20 Correct 57 ms 6232 KB Output is correct
21 Correct 59 ms 6224 KB Output is correct
22 Correct 193 ms 11092 KB Output is correct
23 Correct 15 ms 2396 KB Output is correct
24 Correct 86 ms 5212 KB Output is correct
25 Incorrect 2 ms 1116 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 8 ms 8028 KB Output is correct
2 Correct 7 ms 9048 KB Output is correct
3 Correct 32 ms 12884 KB Output is correct
4 Correct 23 ms 11864 KB Output is correct
5 Correct 56 ms 17308 KB Output is correct
6 Correct 54 ms 16976 KB Output is correct
7 Correct 56 ms 17236 KB Output is correct
8 Correct 55 ms 17232 KB Output is correct
9 Runtime error 867 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 13624 KB Output is correct
2 Correct 47 ms 15156 KB Output is correct
3 Correct 6 ms 8272 KB Output is correct
4 Correct 8 ms 8028 KB Output is correct
5 Correct 144 ms 33036 KB Output is correct
6 Correct 143 ms 37064 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 109 ms 27920 KB Output is correct
9 Correct 120 ms 31340 KB Output is correct
10 Correct 38 ms 13620 KB Output is correct
11 Correct 50 ms 15412 KB Output is correct
12 Correct 0 ms 604 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 600 KB Output is correct
16 Correct 8 ms 8028 KB Output is correct
17 Correct 6 ms 8028 KB Output is correct
18 Correct 48 ms 19376 KB Output is correct
19 Correct 59 ms 21532 KB Output is correct
20 Correct 46 ms 17544 KB Output is correct
21 Correct 59 ms 19516 KB Output is correct
22 Correct 48 ms 18064 KB Output is correct
23 Correct 54 ms 19896 KB Output is correct
24 Correct 8 ms 8028 KB Output is correct
25 Correct 7 ms 9048 KB Output is correct
26 Correct 32 ms 12884 KB Output is correct
27 Correct 23 ms 11864 KB Output is correct
28 Correct 56 ms 17308 KB Output is correct
29 Correct 54 ms 16976 KB Output is correct
30 Correct 56 ms 17236 KB Output is correct
31 Correct 55 ms 17232 KB Output is correct
32 Correct 0 ms 348 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 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 604 KB Output is correct
41 Correct 2 ms 1372 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 1116 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 1116 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 2 ms 600 KB Output is correct
48 Correct 109 ms 6236 KB Output is correct
49 Correct 101 ms 6480 KB Output is correct
50 Correct 72 ms 6236 KB Output is correct
51 Correct 57 ms 6232 KB Output is correct
52 Correct 59 ms 6224 KB Output is correct
53 Correct 193 ms 11092 KB Output is correct
54 Correct 15 ms 2396 KB Output is correct
55 Correct 86 ms 5212 KB Output is correct
56 Incorrect 2 ms 1116 KB 1st lines differ - on the 1st token, expected: '443843838929', found: '443838673362'
57 Halted 0 ms 0 KB -