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Submission #1057383

# Submission time Handle Problem Language Result Execution time Memory
1057383 2024-08-13T18:33:53 Z aykhn Catfish Farm (IOI22_fish) C++17
100 / 100
 447 ms 125264 KB 
#include "fish.h"
 
#include <bits/stdc++.h>
using namespace std;
 
using ll=long long;
 
 
#define rng(i,a,b) for(int i=int(a);i<=int(b);i++)
#define rep(i,b) rng(i,0,b-1)
#define gnr(i,b,a) for(int i=int(b);i>=int(a);i--)
#define per(i,b) gnr(i,b-1,0)
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define bg begin()
#define ed end()
#define all(x) x.bg,x.ed
#define si(x) int(x.size())
template<class t> using vc=vector<t>;
template<class t> using vvc=vc<vc<t>>;
using pii=pair<int,int>;
using vi=vc<int>;
using uint=unsigned;
using ull=unsigned ll;
using pil=pair<int,ll>;
using pli=pair<ll,int>;
using pll=pair<ll,ll>;
using t3=tuple<int,int,int>;
#define N_ 101000
 
vc<pii>Z[N_];
vc<int>YY[N_], GG[N_];
vc<ll>D1[N_], D2[N_];
 
int n, m;
map<int,int>MM[N_];
 
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
  n=N,m=M;
  rep(i,M){
    Y[i]++;
    Z[X[i]].pb({Y[i],W[i]});
    MM[X[i]][Y[i]] = W[i];
  }
  rep(i,N){
    sort(all(Z[i]));
  }
  rep(i,N){
    rng(j,i-1,i+1){
      if(j<0||j>=N)continue;
      for(auto [y,w] : Z[j]){
        YY[i].pb(y);
      }
    }
    YY[i].pb(0);
    sort(all(YY[i]));
    YY[i].resize(unique(all(YY[i])) - YY[i].begin());
    D1[i].resize(si(YY[i]));
    D2[i].resize(si(YY[i]));
    rep(j,si(YY[i])){
      GG[i].pb(MM[i][YY[i][j]]);
    }
  }
  ll INF = 1e18;
  rng(i,1,N-1){
    ll s = 0;
    int pv = 0;
    ll Mx = -INF;
    ll pM = 0;
    rep(j,si(YY[i-1])){
      pM=max(pM, D1[i-1][j]);
      pM=max(pM, D2[i-1][j]);
    }
    rep(j,si(YY[i])){
      while(pv < si(YY[i-1]) && YY[i-1][pv] <= YY[i][j]){
        int y = YY[i-1][pv];
        int g = GG[i-1][pv];
        s += g;
        Mx=max(Mx, D1[i-1][pv]-s);
        pv++;
      }
      D1[i][j] = max({D1[i][j], Mx + s, pM});
    }
    Mx = -INF;
    pv = si(YY[i-1]) - 1;
    per(j,si(YY[i])){
      while(pv >= 0 && YY[i-1][pv] > YY[i][j]){
        int y = YY[i-1][pv];
        int g = MM[i][y];
        Mx=max(Mx, max(D1[i-1][pv], D2[i-1][pv])-s);
        pv--;
        s += g;
      }
      D2[i][j] = max({D2[i][j], Mx + s, pM});
    }
    //printf("%d\n",i);
    //rep(j,si(YY[i])){
      //printf("%lld %lld\n",D1[i][j],D2[i][j]);
    //}
  }
  ll ans=0;
  rep(i,si(YY[N-1])){
    ans=max({ans, D1[N-1][i], D2[N-1][i]});
  }
  return ans;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:78:13: warning: unused variable 'y' [-Wunused-variable]
   78 |         int y = YY[i-1][pv];
      |             ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 50116 KB Output is correct
2 Correct 128 ms 56004 KB Output is correct
3 Correct 21 ms 34140 KB Output is correct
4 Correct 21 ms 34140 KB Output is correct
5 Correct 437 ms 121256 KB Output is correct
6 Correct 294 ms 120916 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16984 KB Output is correct
2 Correct 182 ms 60584 KB Output is correct
3 Correct 213 ms 67048 KB Output is correct
4 Correct 97 ms 50024 KB Output is correct
5 Correct 122 ms 55984 KB Output is correct
6 Correct 2 ms 16988 KB Output is correct
7 Correct 2 ms 16988 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 2 ms 16988 KB Output is correct
10 Correct 28 ms 34132 KB Output is correct
11 Correct 21 ms 34140 KB Output is correct
12 Correct 131 ms 56012 KB Output is correct
13 Correct 161 ms 63172 KB Output is correct
14 Correct 97 ms 53184 KB Output is correct
15 Correct 120 ms 49764 KB Output is correct
16 Correct 105 ms 53316 KB Output is correct
17 Correct 118 ms 57156 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 34136 KB Output is correct
2 Correct 21 ms 34136 KB Output is correct
3 Correct 49 ms 38224 KB Output is correct
4 Correct 35 ms 38488 KB Output is correct
5 Correct 77 ms 44436 KB Output is correct
6 Correct 62 ms 44372 KB Output is correct
7 Correct 65 ms 44368 KB Output is correct
8 Correct 64 ms 44432 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16984 KB Output is correct
2 Correct 2 ms 16984 KB Output is correct
3 Correct 2 ms 16988 KB Output is correct
4 Correct 2 ms 16988 KB Output is correct
5 Correct 2 ms 16988 KB Output is correct
6 Correct 2 ms 16988 KB Output is correct
7 Correct 2 ms 16988 KB Output is correct
8 Correct 2 ms 16988 KB Output is correct
9 Correct 2 ms 16988 KB Output is correct
10 Correct 3 ms 17244 KB Output is correct
11 Correct 2 ms 16988 KB Output is correct
12 Correct 3 ms 17244 KB Output is correct
13 Correct 2 ms 16988 KB Output is correct
14 Correct 3 ms 16988 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16984 KB Output is correct
2 Correct 2 ms 16984 KB Output is correct
3 Correct 2 ms 16988 KB Output is correct
4 Correct 2 ms 16988 KB Output is correct
5 Correct 2 ms 16988 KB Output is correct
6 Correct 2 ms 16988 KB Output is correct
7 Correct 2 ms 16988 KB Output is correct
8 Correct 2 ms 16988 KB Output is correct
9 Correct 2 ms 16988 KB Output is correct
10 Correct 3 ms 17244 KB Output is correct
11 Correct 2 ms 16988 KB Output is correct
12 Correct 3 ms 17244 KB Output is correct
13 Correct 2 ms 16988 KB Output is correct
14 Correct 3 ms 16988 KB Output is correct
15 Correct 2 ms 16988 KB Output is correct
16 Correct 3 ms 17244 KB Output is correct
17 Correct 29 ms 23544 KB Output is correct
18 Correct 30 ms 22952 KB Output is correct
19 Correct 24 ms 23128 KB Output is correct
20 Correct 24 ms 22616 KB Output is correct
21 Correct 22 ms 22444 KB Output is correct
22 Correct 49 ms 27716 KB Output is correct
23 Correct 9 ms 19548 KB Output is correct
24 Correct 21 ms 23284 KB Output is correct
25 Correct 3 ms 17244 KB Output is correct
26 Correct 7 ms 19036 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 16984 KB Output is correct
2 Correct 2 ms 16984 KB Output is correct
3 Correct 2 ms 16988 KB Output is correct
4 Correct 2 ms 16988 KB Output is correct
5 Correct 2 ms 16988 KB Output is correct
6 Correct 2 ms 16988 KB Output is correct
7 Correct 2 ms 16988 KB Output is correct
8 Correct 2 ms 16988 KB Output is correct
9 Correct 2 ms 16988 KB Output is correct
10 Correct 3 ms 17244 KB Output is correct
11 Correct 2 ms 16988 KB Output is correct
12 Correct 3 ms 17244 KB Output is correct
13 Correct 2 ms 16988 KB Output is correct
14 Correct 3 ms 16988 KB Output is correct
15 Correct 2 ms 16988 KB Output is correct
16 Correct 3 ms 17244 KB Output is correct
17 Correct 29 ms 23544 KB Output is correct
18 Correct 30 ms 22952 KB Output is correct
19 Correct 24 ms 23128 KB Output is correct
20 Correct 24 ms 22616 KB Output is correct
21 Correct 22 ms 22444 KB Output is correct
22 Correct 49 ms 27716 KB Output is correct
23 Correct 9 ms 19548 KB Output is correct
24 Correct 21 ms 23284 KB Output is correct
25 Correct 3 ms 17244 KB Output is correct
26 Correct 7 ms 19036 KB Output is correct
27 Correct 4 ms 18268 KB Output is correct
28 Correct 150 ms 46588 KB Output is correct
29 Correct 258 ms 68436 KB Output is correct
30 Correct 316 ms 104656 KB Output is correct
31 Correct 289 ms 106532 KB Output is correct
32 Correct 183 ms 56660 KB Output is correct
33 Correct 308 ms 109908 KB Output is correct
34 Correct 293 ms 109900 KB Output is correct
35 Correct 81 ms 44112 KB Output is correct
36 Correct 330 ms 93460 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 34136 KB Output is correct
2 Correct 21 ms 34136 KB Output is correct
3 Correct 49 ms 38224 KB Output is correct
4 Correct 35 ms 38488 KB Output is correct
5 Correct 77 ms 44436 KB Output is correct
6 Correct 62 ms 44372 KB Output is correct
7 Correct 65 ms 44368 KB Output is correct
8 Correct 64 ms 44432 KB Output is correct
9 Correct 87 ms 61488 KB Output is correct
10 Correct 50 ms 35028 KB Output is correct
11 Correct 132 ms 52984 KB Output is correct
12 Correct 2 ms 16988 KB Output is correct
13 Correct 4 ms 16984 KB Output is correct
14 Correct 2 ms 16988 KB Output is correct
15 Correct 3 ms 16988 KB Output is correct
16 Correct 2 ms 16988 KB Output is correct
17 Correct 2 ms 16988 KB Output is correct
18 Correct 20 ms 34136 KB Output is correct
19 Correct 21 ms 34140 KB Output is correct
20 Correct 22 ms 34140 KB Output is correct
21 Correct 26 ms 34140 KB Output is correct
22 Correct 120 ms 60764 KB Output is correct
23 Correct 151 ms 69320 KB Output is correct
24 Correct 184 ms 72020 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 50116 KB Output is correct
2 Correct 128 ms 56004 KB Output is correct
3 Correct 21 ms 34140 KB Output is correct
4 Correct 21 ms 34140 KB Output is correct
5 Correct 437 ms 121256 KB Output is correct
6 Correct 294 ms 120916 KB Output is correct
7 Correct 2 ms 16984 KB Output is correct
8 Correct 182 ms 60584 KB Output is correct
9 Correct 213 ms 67048 KB Output is correct
10 Correct 97 ms 50024 KB Output is correct
11 Correct 122 ms 55984 KB Output is correct
12 Correct 2 ms 16988 KB Output is correct
13 Correct 2 ms 16988 KB Output is correct
14 Correct 3 ms 16988 KB Output is correct
15 Correct 2 ms 16988 KB Output is correct
16 Correct 28 ms 34132 KB Output is correct
17 Correct 21 ms 34140 KB Output is correct
18 Correct 131 ms 56012 KB Output is correct
19 Correct 161 ms 63172 KB Output is correct
20 Correct 97 ms 53184 KB Output is correct
21 Correct 120 ms 49764 KB Output is correct
22 Correct 105 ms 53316 KB Output is correct
23 Correct 118 ms 57156 KB Output is correct
24 Correct 21 ms 34136 KB Output is correct
25 Correct 21 ms 34136 KB Output is correct
26 Correct 49 ms 38224 KB Output is correct
27 Correct 35 ms 38488 KB Output is correct
28 Correct 77 ms 44436 KB Output is correct
29 Correct 62 ms 44372 KB Output is correct
30 Correct 65 ms 44368 KB Output is correct
31 Correct 64 ms 44432 KB Output is correct
32 Correct 2 ms 16984 KB Output is correct
33 Correct 2 ms 16984 KB Output is correct
34 Correct 2 ms 16988 KB Output is correct
35 Correct 2 ms 16988 KB Output is correct
36 Correct 2 ms 16988 KB Output is correct
37 Correct 2 ms 16988 KB Output is correct
38 Correct 2 ms 16988 KB Output is correct
39 Correct 2 ms 16988 KB Output is correct
40 Correct 2 ms 16988 KB Output is correct
41 Correct 3 ms 17244 KB Output is correct
42 Correct 2 ms 16988 KB Output is correct
43 Correct 3 ms 17244 KB Output is correct
44 Correct 2 ms 16988 KB Output is correct
45 Correct 3 ms 16988 KB Output is correct
46 Correct 2 ms 16988 KB Output is correct
47 Correct 3 ms 17244 KB Output is correct
48 Correct 29 ms 23544 KB Output is correct
49 Correct 30 ms 22952 KB Output is correct
50 Correct 24 ms 23128 KB Output is correct
51 Correct 24 ms 22616 KB Output is correct
52 Correct 22 ms 22444 KB Output is correct
53 Correct 49 ms 27716 KB Output is correct
54 Correct 9 ms 19548 KB Output is correct
55 Correct 21 ms 23284 KB Output is correct
56 Correct 3 ms 17244 KB Output is correct
57 Correct 7 ms 19036 KB Output is correct
58 Correct 4 ms 18268 KB Output is correct
59 Correct 150 ms 46588 KB Output is correct
60 Correct 258 ms 68436 KB Output is correct
61 Correct 316 ms 104656 KB Output is correct
62 Correct 289 ms 106532 KB Output is correct
63 Correct 183 ms 56660 KB Output is correct
64 Correct 308 ms 109908 KB Output is correct
65 Correct 293 ms 109900 KB Output is correct
66 Correct 81 ms 44112 KB Output is correct
67 Correct 330 ms 93460 KB Output is correct
68 Correct 87 ms 61488 KB Output is correct
69 Correct 50 ms 35028 KB Output is correct
70 Correct 132 ms 52984 KB Output is correct
71 Correct 2 ms 16988 KB Output is correct
72 Correct 4 ms 16984 KB Output is correct
73 Correct 2 ms 16988 KB Output is correct
74 Correct 3 ms 16988 KB Output is correct
75 Correct 2 ms 16988 KB Output is correct
76 Correct 2 ms 16988 KB Output is correct
77 Correct 20 ms 34136 KB Output is correct
78 Correct 21 ms 34140 KB Output is correct
79 Correct 22 ms 34140 KB Output is correct
80 Correct 26 ms 34140 KB Output is correct
81 Correct 120 ms 60764 KB Output is correct
82 Correct 151 ms 69320 KB Output is correct
83 Correct 184 ms 72020 KB Output is correct
84 Correct 447 ms 110852 KB Output is correct
85 Correct 447 ms 111904 KB Output is correct
86 Correct 342 ms 123180 KB Output is correct
87 Correct 385 ms 125264 KB Output is correct
88 Correct 2 ms 16988 KB Output is correct
89 Correct 372 ms 125256 KB Output is correct
90 Correct 347 ms 101064 KB Output is correct
91 Correct 228 ms 78932 KB Output is correct