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답안 #627356

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
627356 2022-08-12T13:41:50 Z ainta 메기 농장 (IOI22_fish) C++17
100 / 100
 692 ms 122456 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

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 50104 KB Output is correct
2 Correct 193 ms 55968 KB Output is correct
3 Correct 43 ms 34004 KB Output is correct
4 Correct 48 ms 34104 KB Output is correct
5 Correct 657 ms 121016 KB Output is correct
6 Correct 534 ms 120748 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16820 KB Output is correct
2 Correct 296 ms 60476 KB Output is correct
3 Correct 338 ms 67112 KB Output is correct
4 Correct 156 ms 50032 KB Output is correct
5 Correct 189 ms 55952 KB Output is correct
6 Correct 9 ms 16852 KB Output is correct
7 Correct 9 ms 16852 KB Output is correct
8 Correct 10 ms 16852 KB Output is correct
9 Correct 10 ms 16884 KB Output is correct
10 Correct 42 ms 34040 KB Output is correct
11 Correct 43 ms 34012 KB Output is correct
12 Correct 191 ms 55896 KB Output is correct
13 Correct 214 ms 63012 KB Output is correct
14 Correct 158 ms 53028 KB Output is correct
15 Correct 170 ms 49672 KB Output is correct
16 Correct 184 ms 53056 KB Output is correct
17 Correct 193 ms 56964 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 33996 KB Output is correct
2 Correct 42 ms 34108 KB Output is correct
3 Correct 110 ms 38136 KB Output is correct
4 Correct 87 ms 38348 KB Output is correct
5 Correct 127 ms 44332 KB Output is correct
6 Correct 122 ms 44432 KB Output is correct
7 Correct 134 ms 44548 KB Output is correct
8 Correct 129 ms 44528 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16852 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 9 ms 16852 KB Output is correct
4 Correct 9 ms 16792 KB Output is correct
5 Correct 9 ms 16852 KB Output is correct
6 Correct 9 ms 16908 KB Output is correct
7 Correct 12 ms 16856 KB Output is correct
8 Correct 9 ms 16852 KB Output is correct
9 Correct 9 ms 16980 KB Output is correct
10 Correct 10 ms 17236 KB Output is correct
11 Correct 10 ms 16980 KB Output is correct
12 Correct 13 ms 17068 KB Output is correct
13 Correct 9 ms 16928 KB Output is correct
14 Correct 12 ms 17044 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16852 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 9 ms 16852 KB Output is correct
4 Correct 9 ms 16792 KB Output is correct
5 Correct 9 ms 16852 KB Output is correct
6 Correct 9 ms 16908 KB Output is correct
7 Correct 12 ms 16856 KB Output is correct
8 Correct 9 ms 16852 KB Output is correct
9 Correct 9 ms 16980 KB Output is correct
10 Correct 10 ms 17236 KB Output is correct
11 Correct 10 ms 16980 KB Output is correct
12 Correct 13 ms 17068 KB Output is correct
13 Correct 9 ms 16928 KB Output is correct
14 Correct 12 ms 17044 KB Output is correct
15 Correct 10 ms 16956 KB Output is correct
16 Correct 10 ms 17176 KB Output is correct
17 Correct 56 ms 23708 KB Output is correct
18 Correct 52 ms 23108 KB Output is correct
19 Correct 57 ms 23348 KB Output is correct
20 Correct 45 ms 22636 KB Output is correct
21 Correct 59 ms 22568 KB Output is correct
22 Correct 94 ms 27984 KB Output is correct
23 Correct 22 ms 19460 KB Output is correct
24 Correct 43 ms 23460 KB Output is correct
25 Correct 10 ms 17108 KB Output is correct
26 Correct 17 ms 19000 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 16852 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 9 ms 16852 KB Output is correct
4 Correct 9 ms 16792 KB Output is correct
5 Correct 9 ms 16852 KB Output is correct
6 Correct 9 ms 16908 KB Output is correct
7 Correct 12 ms 16856 KB Output is correct
8 Correct 9 ms 16852 KB Output is correct
9 Correct 9 ms 16980 KB Output is correct
10 Correct 10 ms 17236 KB Output is correct
11 Correct 10 ms 16980 KB Output is correct
12 Correct 13 ms 17068 KB Output is correct
13 Correct 9 ms 16928 KB Output is correct
14 Correct 12 ms 17044 KB Output is correct
15 Correct 10 ms 16956 KB Output is correct
16 Correct 10 ms 17176 KB Output is correct
17 Correct 56 ms 23708 KB Output is correct
18 Correct 52 ms 23108 KB Output is correct
19 Correct 57 ms 23348 KB Output is correct
20 Correct 45 ms 22636 KB Output is correct
21 Correct 59 ms 22568 KB Output is correct
22 Correct 94 ms 27984 KB Output is correct
23 Correct 22 ms 19460 KB Output is correct
24 Correct 43 ms 23460 KB Output is correct
25 Correct 10 ms 17108 KB Output is correct
26 Correct 17 ms 19000 KB Output is correct
27 Correct 13 ms 18200 KB Output is correct
28 Correct 274 ms 46904 KB Output is correct
29 Correct 453 ms 68888 KB Output is correct
30 Correct 544 ms 105180 KB Output is correct
31 Correct 526 ms 103988 KB Output is correct
32 Correct 361 ms 54220 KB Output is correct
33 Correct 531 ms 107172 KB Output is correct
34 Correct 542 ms 107240 KB Output is correct
35 Correct 151 ms 43264 KB Output is correct
36 Correct 605 ms 90984 KB Output is correct

Subtask #7
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 33996 KB Output is correct
2 Correct 42 ms 34108 KB Output is correct
3 Correct 110 ms 38136 KB Output is correct
4 Correct 87 ms 38348 KB Output is correct
5 Correct 127 ms 44332 KB Output is correct
6 Correct 122 ms 44432 KB Output is correct
7 Correct 134 ms 44548 KB Output is correct
8 Correct 129 ms 44528 KB Output is correct
9 Correct 200 ms 61744 KB Output is correct
10 Correct 114 ms 35132 KB Output is correct
11 Correct 249 ms 53600 KB Output is correct
12 Correct 9 ms 16852 KB Output is correct
13 Correct 9 ms 16852 KB Output is correct
14 Correct 9 ms 16876 KB Output is correct
15 Correct 10 ms 16852 KB Output is correct
16 Correct 10 ms 16852 KB Output is correct
17 Correct 9 ms 16852 KB Output is correct
18 Correct 49 ms 34100 KB Output is correct
19 Correct 47 ms 34116 KB Output is correct
20 Correct 51 ms 33996 KB Output is correct
21 Correct 54 ms 34016 KB Output is correct
22 Correct 250 ms 61036 KB Output is correct
23 Correct 354 ms 69580 KB Output is correct
24 Correct 335 ms 72484 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 50104 KB Output is correct
2 Correct 193 ms 55968 KB Output is correct
3 Correct 43 ms 34004 KB Output is correct
4 Correct 48 ms 34104 KB Output is correct
5 Correct 657 ms 121016 KB Output is correct
6 Correct 534 ms 120748 KB Output is correct
7 Correct 9 ms 16820 KB Output is correct
8 Correct 296 ms 60476 KB Output is correct
9 Correct 338 ms 67112 KB Output is correct
10 Correct 156 ms 50032 KB Output is correct
11 Correct 189 ms 55952 KB Output is correct
12 Correct 9 ms 16852 KB Output is correct
13 Correct 9 ms 16852 KB Output is correct
14 Correct 10 ms 16852 KB Output is correct
15 Correct 10 ms 16884 KB Output is correct
16 Correct 42 ms 34040 KB Output is correct
17 Correct 43 ms 34012 KB Output is correct
18 Correct 191 ms 55896 KB Output is correct
19 Correct 214 ms 63012 KB Output is correct
20 Correct 158 ms 53028 KB Output is correct
21 Correct 170 ms 49672 KB Output is correct
22 Correct 184 ms 53056 KB Output is correct
23 Correct 193 ms 56964 KB Output is correct
24 Correct 43 ms 33996 KB Output is correct
25 Correct 42 ms 34108 KB Output is correct
26 Correct 110 ms 38136 KB Output is correct
27 Correct 87 ms 38348 KB Output is correct
28 Correct 127 ms 44332 KB Output is correct
29 Correct 122 ms 44432 KB Output is correct
30 Correct 134 ms 44548 KB Output is correct
31 Correct 129 ms 44528 KB Output is correct
32 Correct 9 ms 16852 KB Output is correct
33 Correct 10 ms 16852 KB Output is correct
34 Correct 9 ms 16852 KB Output is correct
35 Correct 9 ms 16792 KB Output is correct
36 Correct 9 ms 16852 KB Output is correct
37 Correct 9 ms 16908 KB Output is correct
38 Correct 12 ms 16856 KB Output is correct
39 Correct 9 ms 16852 KB Output is correct
40 Correct 9 ms 16980 KB Output is correct
41 Correct 10 ms 17236 KB Output is correct
42 Correct 10 ms 16980 KB Output is correct
43 Correct 13 ms 17068 KB Output is correct
44 Correct 9 ms 16928 KB Output is correct
45 Correct 12 ms 17044 KB Output is correct
46 Correct 10 ms 16956 KB Output is correct
47 Correct 10 ms 17176 KB Output is correct
48 Correct 56 ms 23708 KB Output is correct
49 Correct 52 ms 23108 KB Output is correct
50 Correct 57 ms 23348 KB Output is correct
51 Correct 45 ms 22636 KB Output is correct
52 Correct 59 ms 22568 KB Output is correct
53 Correct 94 ms 27984 KB Output is correct
54 Correct 22 ms 19460 KB Output is correct
55 Correct 43 ms 23460 KB Output is correct
56 Correct 10 ms 17108 KB Output is correct
57 Correct 17 ms 19000 KB Output is correct
58 Correct 13 ms 18200 KB Output is correct
59 Correct 274 ms 46904 KB Output is correct
60 Correct 453 ms 68888 KB Output is correct
61 Correct 544 ms 105180 KB Output is correct
62 Correct 526 ms 103988 KB Output is correct
63 Correct 361 ms 54220 KB Output is correct
64 Correct 531 ms 107172 KB Output is correct
65 Correct 542 ms 107240 KB Output is correct
66 Correct 151 ms 43264 KB Output is correct
67 Correct 605 ms 90984 KB Output is correct
68 Correct 200 ms 61744 KB Output is correct
69 Correct 114 ms 35132 KB Output is correct
70 Correct 249 ms 53600 KB Output is correct
71 Correct 9 ms 16852 KB Output is correct
72 Correct 9 ms 16852 KB Output is correct
73 Correct 9 ms 16876 KB Output is correct
74 Correct 10 ms 16852 KB Output is correct
75 Correct 10 ms 16852 KB Output is correct
76 Correct 9 ms 16852 KB Output is correct
77 Correct 49 ms 34100 KB Output is correct
78 Correct 47 ms 34116 KB Output is correct
79 Correct 51 ms 33996 KB Output is correct
80 Correct 54 ms 34016 KB Output is correct
81 Correct 250 ms 61036 KB Output is correct
82 Correct 354 ms 69580 KB Output is correct
83 Correct 335 ms 72484 KB Output is correct
84 Correct 692 ms 108432 KB Output is correct
85 Correct 671 ms 109180 KB Output is correct
86 Correct 580 ms 120200 KB Output is correct
87 Correct 599 ms 122456 KB Output is correct
88 Correct 10 ms 16904 KB Output is correct
89 Correct 562 ms 122356 KB Output is correct
90 Correct 478 ms 98664 KB Output is correct
91 Correct 462 ms 76464 KB Output is correct