oj.uz

답안 #1079455

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1079455 2024-08-28T14:56:52 Z LittleOrange 메기 농장 (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

# 결과 실행 시간 메모리 Grader output
1 Correct 41 ms 13760 KB Output is correct
2 Correct 59 ms 15156 KB Output is correct
3 Correct 7 ms 8280 KB Output is correct
4 Correct 7 ms 8028 KB Output is correct
5 Correct 146 ms 32904 KB Output is correct
6 Correct 160 ms 36940 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 436 KB Output is correct
2 Correct 103 ms 27036 KB Output is correct
3 Correct 159 ms 31600 KB Output is correct
4 Correct 39 ms 13628 KB Output is correct
5 Correct 46 ms 15092 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 1 ms 348 KB Output is correct
10 Correct 7 ms 8028 KB Output is correct
11 Correct 6 ms 8028 KB Output is correct
12 Correct 51 ms 19620 KB Output is correct
13 Correct 62 ms 20200 KB Output is correct
14 Correct 52 ms 18544 KB Output is correct
15 Correct 92 ms 18460 KB Output is correct
16 Correct 60 ms 18096 KB Output is correct
17 Correct 51 ms 19860 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 8024 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 32 ms 12940 KB Output is correct
4 Correct 22 ms 12072 KB Output is correct
5 Correct 48 ms 17304 KB Output is correct
6 Correct 47 ms 16956 KB Output is correct
7 Correct 50 ms 17232 KB Output is correct
8 Correct 51 ms 17240 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 392 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 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 4 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1180 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 1348 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 392 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 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 4 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1180 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 1348 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 10 ms 600 KB Output is correct
17 Correct 913 ms 7364 KB Output is correct
18 Execution timed out 1059 ms 7740 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 392 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 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 4 ms 1372 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 2 ms 1180 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 1348 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 10 ms 600 KB Output is correct
17 Correct 913 ms 7364 KB Output is correct
18 Execution timed out 1059 ms 7740 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 8024 KB Output is correct
2 Correct 7 ms 9052 KB Output is correct
3 Correct 32 ms 12940 KB Output is correct
4 Correct 22 ms 12072 KB Output is correct
5 Correct 48 ms 17304 KB Output is correct
6 Correct 47 ms 16956 KB Output is correct
7 Correct 50 ms 17232 KB Output is correct
8 Correct 51 ms 17240 KB Output is correct
9 Runtime error 841 ms 2097152 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 41 ms 13760 KB Output is correct
2 Correct 59 ms 15156 KB Output is correct
3 Correct 7 ms 8280 KB Output is correct
4 Correct 7 ms 8028 KB Output is correct
5 Correct 146 ms 32904 KB Output is correct
6 Correct 160 ms 36940 KB Output is correct
7 Correct 1 ms 436 KB Output is correct
8 Correct 103 ms 27036 KB Output is correct
9 Correct 159 ms 31600 KB Output is correct
10 Correct 39 ms 13628 KB Output is correct
11 Correct 46 ms 15092 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 1 ms 348 KB Output is correct
16 Correct 7 ms 8028 KB Output is correct
17 Correct 6 ms 8028 KB Output is correct
18 Correct 51 ms 19620 KB Output is correct
19 Correct 62 ms 20200 KB Output is correct
20 Correct 52 ms 18544 KB Output is correct
21 Correct 92 ms 18460 KB Output is correct
22 Correct 60 ms 18096 KB Output is correct
23 Correct 51 ms 19860 KB Output is correct
24 Correct 7 ms 8024 KB Output is correct
25 Correct 7 ms 9052 KB Output is correct
26 Correct 32 ms 12940 KB Output is correct
27 Correct 22 ms 12072 KB Output is correct
28 Correct 48 ms 17304 KB Output is correct
29 Correct 47 ms 16956 KB Output is correct
30 Correct 50 ms 17232 KB Output is correct
31 Correct 51 ms 17240 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 392 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 0 ms 344 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 4 ms 1372 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 2 ms 1180 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 2 ms 1348 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 10 ms 600 KB Output is correct
48 Correct 913 ms 7364 KB Output is correct
49 Execution timed out 1059 ms 7740 KB Time limit exceeded
50 Halted 0 ms 0 KB -