oj.uz

Submission #807301

# Submission time Handle Problem Language Result Execution time Memory
807301 2023-08-04T15:36:54 Z I_Love_EliskaM_ Catfish Farm (IOI22_fish) C++17
100 / 100
 350 ms 101576 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0;i<n;++i)
#define pb push_back
#define all(x) x.begin(), x.end()
using ll = long long;
#define pi pair<ll,ll>
#define f first
#define s second

const int N=100005;
vector<ll> pr[N];
vector<pi> f[N];

ll sum(int i, int j) {
  int l=0, r=f[i].size();
  while (l<r) {
    int m=(l+r+1)>>1;
    if (f[i][m-1].f>j) r=m-1;
    else l=m;
  }
  return pr[i][r];
}

vector<pi> dp[N], dp2[N], dp3[N];
vector<ll> prmx[N], prmx2[N], sfmx[N];


ll prmxquery(int i, int j) {
  return prmx[i].back();
}
ll prmx2query(int i, int j) {
  int l=0, r=dp3[i].size();
  while (l<r) {
    int m=(l+r+1)>>1;
    if (dp3[i][m-1].f >= j) r=m-1;
    else l=m;
  }
  return prmx2[i][r];
}
ll sfmxquery(int i, int j) {
  return sfmx[i][0];
}

ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {

  forn(i,m) {
    f[x[i]+1].pb({y[i]+1,w[i]});
  }
  for(int i=1;i<=n;++i) {
    sort(all(f[i]));
    f[i].pb({n+1,0});
    pr[i]={0};
    forn(j,f[i].size()) pr[i].pb(pr[i].back()+f[i][j].s);
  }

  dp[0].pb({0,0});
  dp[0].pb({n,0});
  pr[0]={0,0,0};
  dp2[0]=dp3[0]=dp[0];
  prmx[0]={0,0};
  prmx2[0]=sfmx[0]=prmx[0];
  pr[n+1]={0,0,0};

  for(int i=1; i<=n; ++i) {
    if (f[i][0].f!=1) {
      int j=0;

      ll d=0;
      if (i>=2) {
        d=max(d,prmxquery(i-2,j)+sum(i-1,j));
        d=max(d,sfmxquery(i-2,j));
      }

      d=max(d,prmx2query(i-1,j)+sum(i-1,j));
      d=max(d,prmxquery(i-1,j));
      ll d3=d;
      d=max(d,sfmxquery(i-1,j)-sum(i,j));
      ll d2=d+sum(i+1,j);

      dp[i].pb({j,d});
      dp2[i].pb({j,d2});
      dp3[i].pb({j,d3});
    }
    for(auto&x:f[i]) {
      int j=x.f-1;

      ll d=0;
      if (i>=2) {
        d=max(d,prmxquery(i-2,j)+sum(i-1,j));
        d=max(d,sfmxquery(i-2,j));
      }

      d=max(d,prmx2query(i-1,j)+sum(i-1,j));
      d=max(d,prmxquery(i-1,j));
      ll d3=d;
      d=max(d,sfmxquery(i-1,j)-sum(i,j));
      ll d2=d+sum(i+1,j);

      dp[i].pb({j,d});
      dp2[i].pb({j,d2});
      dp3[i].pb({j,d3});
    }
    prmx[i]={0};
    prmx2[i]=sfmx[i]=prmx[i];

    for (int j=0; j<dp[i].size(); ++j) {
      prmx[i].pb(max(prmx[i].back(),dp[i][j].s));
      prmx2[i].pb(max(prmx2[i].back(),dp3[i][j].s-sum(i,dp3[i][j].f)));
    }
      
    reverse(all(dp2[i]));
    for (int j=0; j<dp2[i].size(); ++j) {
      sfmx[i].pb(max(sfmx[i].back(),dp2[i][j].s));
    }
    reverse(all(dp2[i]));
    reverse(all(sfmx[i]));

  }
  ll ans=0;
  for(auto&x:dp[n]) ans=max(ans,x.s);
  return ans;
  return prmx[n].back();

}

Compilation message

fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:4:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define forn(i,n) for(int i=0;i<n;++i)
......
   55 |     forn(j,f[i].size()) pr[i].pb(pr[i].back()+f[i][j].s);
      |          ~~~~~~~~~~~~~          
fish.cpp:55:5: note: in expansion of macro 'forn'
   55 |     forn(j,f[i].size()) pr[i].pb(pr[i].back()+f[i][j].s);
      |     ^~~~
fish.cpp:108:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |     for (int j=0; j<dp[i].size(); ++j) {
      |                   ~^~~~~~~~~~~~~
fish.cpp:114:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  114 |     for (int j=0; j<dp2[i].size(); ++j) {
      |                   ~^~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 59576 KB Output is correct
2 Correct 152 ms 65200 KB Output is correct
3 Correct 77 ms 53476 KB Output is correct
4 Correct 93 ms 53404 KB Output is correct
5 Correct 263 ms 88880 KB Output is correct
6 Correct 350 ms 101576 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 18968 KB Output is correct
2 Correct 201 ms 69468 KB Output is correct
3 Correct 214 ms 77224 KB Output is correct
4 Correct 129 ms 59572 KB Output is correct
5 Correct 143 ms 65308 KB Output is correct
6 Correct 9 ms 19028 KB Output is correct
7 Correct 9 ms 19028 KB Output is correct
8 Correct 8 ms 19028 KB Output is correct
9 Correct 9 ms 19028 KB Output is correct
10 Correct 98 ms 53408 KB Output is correct
11 Correct 78 ms 53484 KB Output is correct
12 Correct 137 ms 59612 KB Output is correct
13 Correct 147 ms 65284 KB Output is correct
14 Correct 152 ms 59844 KB Output is correct
15 Correct 156 ms 64392 KB Output is correct
16 Correct 133 ms 59852 KB Output is correct
17 Correct 149 ms 64244 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 53516 KB Output is correct
2 Correct 79 ms 53436 KB Output is correct
3 Correct 111 ms 52912 KB Output is correct
4 Correct 113 ms 55592 KB Output is correct
5 Correct 150 ms 59820 KB Output is correct
6 Correct 133 ms 59824 KB Output is correct
7 Correct 122 ms 59804 KB Output is correct
8 Correct 119 ms 59816 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19028 KB Output is correct
2 Correct 9 ms 19016 KB Output is correct
3 Correct 9 ms 19088 KB Output is correct
4 Correct 9 ms 19028 KB Output is correct
5 Correct 9 ms 19068 KB Output is correct
6 Correct 11 ms 19028 KB Output is correct
7 Correct 8 ms 19028 KB Output is correct
8 Correct 12 ms 19028 KB Output is correct
9 Correct 9 ms 19236 KB Output is correct
10 Correct 13 ms 19640 KB Output is correct
11 Correct 8 ms 19184 KB Output is correct
12 Correct 8 ms 19284 KB Output is correct
13 Correct 8 ms 19028 KB Output is correct
14 Correct 11 ms 19272 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19028 KB Output is correct
2 Correct 9 ms 19016 KB Output is correct
3 Correct 9 ms 19088 KB Output is correct
4 Correct 9 ms 19028 KB Output is correct
5 Correct 9 ms 19068 KB Output is correct
6 Correct 11 ms 19028 KB Output is correct
7 Correct 8 ms 19028 KB Output is correct
8 Correct 12 ms 19028 KB Output is correct
9 Correct 9 ms 19236 KB Output is correct
10 Correct 13 ms 19640 KB Output is correct
11 Correct 8 ms 19184 KB Output is correct
12 Correct 8 ms 19284 KB Output is correct
13 Correct 8 ms 19028 KB Output is correct
14 Correct 11 ms 19272 KB Output is correct
15 Correct 12 ms 19152 KB Output is correct
16 Correct 10 ms 19440 KB Output is correct
17 Correct 31 ms 24764 KB Output is correct
18 Correct 31 ms 28200 KB Output is correct
19 Correct 31 ms 27392 KB Output is correct
20 Correct 31 ms 27444 KB Output is correct
21 Correct 29 ms 27424 KB Output is correct
22 Correct 52 ms 35772 KB Output is correct
23 Correct 14 ms 20604 KB Output is correct
24 Correct 24 ms 23508 KB Output is correct
25 Correct 10 ms 19284 KB Output is correct
26 Correct 13 ms 20436 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19028 KB Output is correct
2 Correct 9 ms 19016 KB Output is correct
3 Correct 9 ms 19088 KB Output is correct
4 Correct 9 ms 19028 KB Output is correct
5 Correct 9 ms 19068 KB Output is correct
6 Correct 11 ms 19028 KB Output is correct
7 Correct 8 ms 19028 KB Output is correct
8 Correct 12 ms 19028 KB Output is correct
9 Correct 9 ms 19236 KB Output is correct
10 Correct 13 ms 19640 KB Output is correct
11 Correct 8 ms 19184 KB Output is correct
12 Correct 8 ms 19284 KB Output is correct
13 Correct 8 ms 19028 KB Output is correct
14 Correct 11 ms 19272 KB Output is correct
15 Correct 12 ms 19152 KB Output is correct
16 Correct 10 ms 19440 KB Output is correct
17 Correct 31 ms 24764 KB Output is correct
18 Correct 31 ms 28200 KB Output is correct
19 Correct 31 ms 27392 KB Output is correct
20 Correct 31 ms 27444 KB Output is correct
21 Correct 29 ms 27424 KB Output is correct
22 Correct 52 ms 35772 KB Output is correct
23 Correct 14 ms 20604 KB Output is correct
24 Correct 24 ms 23508 KB Output is correct
25 Correct 10 ms 19284 KB Output is correct
26 Correct 13 ms 20436 KB Output is correct
27 Correct 12 ms 20564 KB Output is correct
28 Correct 123 ms 56568 KB Output is correct
29 Correct 184 ms 64716 KB Output is correct
30 Correct 157 ms 62796 KB Output is correct
31 Correct 153 ms 62756 KB Output is correct
32 Correct 163 ms 74200 KB Output is correct
33 Correct 163 ms 62812 KB Output is correct
34 Correct 152 ms 62820 KB Output is correct
35 Correct 66 ms 38892 KB Output is correct
36 Correct 165 ms 72388 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 53516 KB Output is correct
2 Correct 79 ms 53436 KB Output is correct
3 Correct 111 ms 52912 KB Output is correct
4 Correct 113 ms 55592 KB Output is correct
5 Correct 150 ms 59820 KB Output is correct
6 Correct 133 ms 59824 KB Output is correct
7 Correct 122 ms 59804 KB Output is correct
8 Correct 119 ms 59816 KB Output is correct
9 Correct 134 ms 69280 KB Output is correct
10 Correct 84 ms 46592 KB Output is correct
11 Correct 167 ms 74188 KB Output is correct
12 Correct 9 ms 19032 KB Output is correct
13 Correct 12 ms 19028 KB Output is correct
14 Correct 9 ms 19096 KB Output is correct
15 Correct 8 ms 19028 KB Output is correct
16 Correct 9 ms 19028 KB Output is correct
17 Correct 11 ms 19028 KB Output is correct
18 Correct 75 ms 53508 KB Output is correct
19 Correct 77 ms 53508 KB Output is correct
20 Correct 76 ms 53508 KB Output is correct
21 Correct 78 ms 53480 KB Output is correct
22 Correct 164 ms 68260 KB Output is correct
23 Correct 205 ms 82964 KB Output is correct
24 Correct 187 ms 83540 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 59576 KB Output is correct
2 Correct 152 ms 65200 KB Output is correct
3 Correct 77 ms 53476 KB Output is correct
4 Correct 93 ms 53404 KB Output is correct
5 Correct 263 ms 88880 KB Output is correct
6 Correct 350 ms 101576 KB Output is correct
7 Correct 9 ms 18968 KB Output is correct
8 Correct 201 ms 69468 KB Output is correct
9 Correct 214 ms 77224 KB Output is correct
10 Correct 129 ms 59572 KB Output is correct
11 Correct 143 ms 65308 KB Output is correct
12 Correct 9 ms 19028 KB Output is correct
13 Correct 9 ms 19028 KB Output is correct
14 Correct 8 ms 19028 KB Output is correct
15 Correct 9 ms 19028 KB Output is correct
16 Correct 98 ms 53408 KB Output is correct
17 Correct 78 ms 53484 KB Output is correct
18 Correct 137 ms 59612 KB Output is correct
19 Correct 147 ms 65284 KB Output is correct
20 Correct 152 ms 59844 KB Output is correct
21 Correct 156 ms 64392 KB Output is correct
22 Correct 133 ms 59852 KB Output is correct
23 Correct 149 ms 64244 KB Output is correct
24 Correct 77 ms 53516 KB Output is correct
25 Correct 79 ms 53436 KB Output is correct
26 Correct 111 ms 52912 KB Output is correct
27 Correct 113 ms 55592 KB Output is correct
28 Correct 150 ms 59820 KB Output is correct
29 Correct 133 ms 59824 KB Output is correct
30 Correct 122 ms 59804 KB Output is correct
31 Correct 119 ms 59816 KB Output is correct
32 Correct 9 ms 19028 KB Output is correct
33 Correct 9 ms 19016 KB Output is correct
34 Correct 9 ms 19088 KB Output is correct
35 Correct 9 ms 19028 KB Output is correct
36 Correct 9 ms 19068 KB Output is correct
37 Correct 11 ms 19028 KB Output is correct
38 Correct 8 ms 19028 KB Output is correct
39 Correct 12 ms 19028 KB Output is correct
40 Correct 9 ms 19236 KB Output is correct
41 Correct 13 ms 19640 KB Output is correct
42 Correct 8 ms 19184 KB Output is correct
43 Correct 8 ms 19284 KB Output is correct
44 Correct 8 ms 19028 KB Output is correct
45 Correct 11 ms 19272 KB Output is correct
46 Correct 12 ms 19152 KB Output is correct
47 Correct 10 ms 19440 KB Output is correct
48 Correct 31 ms 24764 KB Output is correct
49 Correct 31 ms 28200 KB Output is correct
50 Correct 31 ms 27392 KB Output is correct
51 Correct 31 ms 27444 KB Output is correct
52 Correct 29 ms 27424 KB Output is correct
53 Correct 52 ms 35772 KB Output is correct
54 Correct 14 ms 20604 KB Output is correct
55 Correct 24 ms 23508 KB Output is correct
56 Correct 10 ms 19284 KB Output is correct
57 Correct 13 ms 20436 KB Output is correct
58 Correct 12 ms 20564 KB Output is correct
59 Correct 123 ms 56568 KB Output is correct
60 Correct 184 ms 64716 KB Output is correct
61 Correct 157 ms 62796 KB Output is correct
62 Correct 153 ms 62756 KB Output is correct
63 Correct 163 ms 74200 KB Output is correct
64 Correct 163 ms 62812 KB Output is correct
65 Correct 152 ms 62820 KB Output is correct
66 Correct 66 ms 38892 KB Output is correct
67 Correct 165 ms 72388 KB Output is correct
68 Correct 134 ms 69280 KB Output is correct
69 Correct 84 ms 46592 KB Output is correct
70 Correct 167 ms 74188 KB Output is correct
71 Correct 9 ms 19032 KB Output is correct
72 Correct 12 ms 19028 KB Output is correct
73 Correct 9 ms 19096 KB Output is correct
74 Correct 8 ms 19028 KB Output is correct
75 Correct 9 ms 19028 KB Output is correct
76 Correct 11 ms 19028 KB Output is correct
77 Correct 75 ms 53508 KB Output is correct
78 Correct 77 ms 53508 KB Output is correct
79 Correct 76 ms 53508 KB Output is correct
80 Correct 78 ms 53480 KB Output is correct
81 Correct 164 ms 68260 KB Output is correct
82 Correct 205 ms 82964 KB Output is correct
83 Correct 187 ms 83540 KB Output is correct
84 Correct 269 ms 87604 KB Output is correct
85 Correct 281 ms 92408 KB Output is correct
86 Correct 309 ms 96792 KB Output is correct
87 Correct 331 ms 100820 KB Output is correct
88 Correct 9 ms 19028 KB Output is correct
89 Correct 320 ms 100824 KB Output is correct
90 Correct 266 ms 99000 KB Output is correct
91 Correct 256 ms 99660 KB Output is correct