oj.uz

Submission #1070930

# Submission time Handle Problem Language Result Execution time Memory
1070930 2024-08-22T21:01:50 Z beaconmc Catfish Farm (IOI22_fish) C++17
100 / 100
 960 ms 313052 KB 
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include "fish.h"
 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
const ll maxn = 100005;


basic_string<ll> realheights[maxn];
 
unordered_map<ll, ll> weights;
 
basic_string<ll> p[maxn];
 
basic_string<array<ll,2>>  dp[maxn];
 
basic_string<ll> pref[maxn][2];
basic_string<ll> pref2[maxn][2];
basic_string<ll> suff[maxn][2];
 
 
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {

    weights.reserve(2097152);
    weights.max_load_factor(0.25);
    FOR(i,0,M){
        Y[i]++;
        weights[X[i]*(ll)100000000+Y[i]] = W[i];
 
        if (X[i] > 0) realheights[X[i]-1].push_back(Y[i]);
        realheights[X[i]].push_back(Y[i]);
        realheights[X[i]+1].push_back(Y[i]);
        realheights[X[i]+2].push_back(Y[i]);
    }
    FOR(i,0,maxn) realheights[i].push_back(0);
    FOR(i,0,maxn) realheights[i].push_back(maxn);

    FOR(i,0,maxn){
        sort(realheights[i].begin(), realheights[i].end());
        auto it = unique(realheights[i].begin(), realheights[i].end());
        realheights[i].resize(it-realheights[i].begin());
        sort(realheights[i].begin(), realheights[i].end());
    }
 
    FOR(i,0,maxn){
        FOR(k,0,2){
            pref[i][k].resize(realheights[i].size());
            pref2[i][k].resize(realheights[i].size());
            suff[i][k].resize(realheights[i].size());
        }
        p[i].resize(realheights[i].size());
        dp[i].resize(realheights[i].size());
    }

 
 
 
    FOR(i,0,maxn){
        p[i][0] = 0;
        ll prev = 0;
        FOR(j,1,realheights[i].size()){
            p[i][j] = p[i][j-1] + weights[i*(ll)100000000+realheights[i][j]];
        }
    }
 
 
 
    FOR(i,1,N+1){
 
        FOR(X,0,dp[i].size()){
            ll j = realheights[i][X];
            FOR(k,0,2){
 
 
                if (i<2) continue;
                ll temp = 0;
                ll add = 0;
                if (k==0){
                    if (X==dp[i].size()-1) continue;
                    ll down = upper_bound(realheights[i-1].begin(), realheights[i-1].end(), j) - realheights[i-1].begin() - 1;
 
                    temp = max(temp, suff[i-1][0][down] - p[i-1][down]);
                    temp = max(temp, suff[i-1][1][down] - p[i-1][down]);
 
                    // FOR(p,j+1,N+1){
                    //     if (fish[i-1][p]) add += weights[i-1][p];
                    //     temp = max(temp, dp[i-1][p][0] + add);
                    //     temp = max(temp, dp[i-1][p][1] + add);
                    // }
                }
                else{
                    ll down = upper_bound(realheights[i-1].begin(), realheights[i-1].end(), j) - realheights[i-1].begin() - 1;
                    ll down2 = upper_bound(realheights[i-2].begin(), realheights[i-2].end(), j) - realheights[i-2].begin() - 1;
 
 
                    temp = max(temp, pref[i-1][0][down]);
                    temp = max(temp, pref[i-1][1][down] + p[i-2][down2]);
 
                    // FOR(p,0,j+1) if (fish[i-2][p]) add += weights[i-2][p];
                    // FOR(p,0,j+1){
                    //     if (fish[i-2][p]) add -= weights[i-2][p];
                    //     temp = max(temp, dp[i-1][p][0]);
                    //     temp = max(temp, dp[i-1][p][1] + add);
                    // }
                }
 
 
                dp[i][X][k] = temp;
            }
        }
        ll sz = realheights[i].size();
 
        FOR(k,0,2){
            ll tempadd = 0;
            ll tempadd2 = 0;
 
 
            FOR(j,0,sz){
                tempadd += weights[i*(ll)100000000+realheights[i][j]];
                suff[i][k][j] = dp[i][j][k]+tempadd;
            }
 
            FOR(j,0,sz){
                tempadd2 -= weights[(i-1)*(ll)100000000+realheights[i][j]];
                pref[i][k][j] = dp[i][j][k] + tempadd2;
                pref2[i][k][j] = dp[i][j][k];
            }
            ll prev = 0;
            FOR(j,1,sz){
                pref[i][k][j] = max(pref[i][k][j], pref[i][k][j-1]);
                pref2[i][k][j] = max(pref2[i][k][j], pref2[i][k][j-1]);
 
            }
 
            FORNEG(j,sz-2,-1){
                suff[i][k][j] = max(suff[i][k][j], suff[i][k][j+1]);
 
 
            }
 
        }
        // cout << i << endl;
        // cout << suff[2][2][0] << "FUCK" << endl;
 
    }
 
 

 
 
 
    ll ans = 0;
 
    FOR(i,0,N+1){
        FOR(j,0,dp[i].size()){
            ans = max(dp[i][j][0], ans);
            ans = max(dp[i][j][1], ans);
        }
    }
    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:9:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   68 |         FOR(j,1,realheights[i].size()){
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~
fish.cpp:68:9: note: in expansion of macro 'FOR'
   68 |         FOR(j,1,realheights[i].size()){
      |         ^~~
fish.cpp:67:12: warning: unused variable 'prev' [-Wunused-variable]
   67 |         ll prev = 0;
      |            ^~~~
fish.cpp:9:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   77 |         FOR(X,0,dp[i].size()){
      |             ~~~~~~~~~~~~~~~~     
fish.cpp:77:9: note: in expansion of macro 'FOR'
   77 |         FOR(X,0,dp[i].size()){
      |         ^~~
fish.cpp:86:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |                     if (X==dp[i].size()-1) continue;
      |                         ~^~~~~~~~~~~~~~~~
fish.cpp:84:20: warning: unused variable 'add' [-Wunused-variable]
   84 |                 ll add = 0;
      |                    ^~~
fish.cpp:135:16: warning: unused variable 'prev' [-Wunused-variable]
  135 |             ll prev = 0;
      |                ^~~~
fish.cpp:9:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
  162 |         FOR(j,0,dp[i].size()){
      |             ~~~~~~~~~~~~~~~~     
fish.cpp:162:9: note: in expansion of macro 'FOR'
  162 |         FOR(j,0,dp[i].size()){
      |         ^~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 111124 KB Output is correct
2 Correct 172 ms 118120 KB Output is correct
3 Correct 83 ms 82772 KB Output is correct
4 Correct 82 ms 82772 KB Output is correct
5 Correct 602 ms 298320 KB Output is correct
6 Correct 855 ms 305392 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 79784 KB Output is correct
2 Correct 240 ms 161812 KB Output is correct
3 Correct 283 ms 165792 KB Output is correct
4 Correct 146 ms 110896 KB Output is correct
5 Correct 171 ms 118072 KB Output is correct
6 Correct 58 ms 79696 KB Output is correct
7 Correct 57 ms 79700 KB Output is correct
8 Correct 58 ms 79704 KB Output is correct
9 Correct 57 ms 79700 KB Output is correct
10 Correct 77 ms 82772 KB Output is correct
11 Correct 82 ms 82932 KB Output is correct
12 Correct 171 ms 119976 KB Output is correct
13 Correct 214 ms 161312 KB Output is correct
14 Correct 179 ms 115504 KB Output is correct
15 Correct 168 ms 107104 KB Output is correct
16 Correct 175 ms 115620 KB Output is correct
17 Correct 179 ms 119464 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 82768 KB Output is correct
2 Correct 81 ms 82964 KB Output is correct
3 Correct 122 ms 96084 KB Output is correct
4 Correct 112 ms 93064 KB Output is correct
5 Correct 155 ms 105812 KB Output is correct
6 Correct 165 ms 105928 KB Output is correct
7 Correct 160 ms 105796 KB Output is correct
8 Correct 152 ms 105828 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 79696 KB Output is correct
2 Correct 60 ms 79700 KB Output is correct
3 Correct 64 ms 79804 KB Output is correct
4 Correct 70 ms 79660 KB Output is correct
5 Correct 55 ms 79652 KB Output is correct
6 Correct 58 ms 79628 KB Output is correct
7 Correct 58 ms 79768 KB Output is correct
8 Correct 57 ms 79700 KB Output is correct
9 Correct 74 ms 79768 KB Output is correct
10 Correct 67 ms 80212 KB Output is correct
11 Correct 74 ms 79872 KB Output is correct
12 Correct 58 ms 79956 KB Output is correct
13 Correct 57 ms 79696 KB Output is correct
14 Correct 57 ms 79956 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 79696 KB Output is correct
2 Correct 60 ms 79700 KB Output is correct
3 Correct 64 ms 79804 KB Output is correct
4 Correct 70 ms 79660 KB Output is correct
5 Correct 55 ms 79652 KB Output is correct
6 Correct 58 ms 79628 KB Output is correct
7 Correct 58 ms 79768 KB Output is correct
8 Correct 57 ms 79700 KB Output is correct
9 Correct 74 ms 79768 KB Output is correct
10 Correct 67 ms 80212 KB Output is correct
11 Correct 74 ms 79872 KB Output is correct
12 Correct 58 ms 79956 KB Output is correct
13 Correct 57 ms 79696 KB Output is correct
14 Correct 57 ms 79956 KB Output is correct
15 Correct 58 ms 79888 KB Output is correct
16 Correct 74 ms 80212 KB Output is correct
17 Correct 102 ms 89168 KB Output is correct
18 Correct 93 ms 88432 KB Output is correct
19 Correct 116 ms 89168 KB Output is correct
20 Correct 93 ms 87888 KB Output is correct
21 Correct 91 ms 87888 KB Output is correct
22 Correct 119 ms 95516 KB Output is correct
23 Correct 81 ms 83752 KB Output is correct
24 Correct 99 ms 89344 KB Output is correct
25 Correct 67 ms 80212 KB Output is correct
26 Correct 83 ms 82808 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 79696 KB Output is correct
2 Correct 60 ms 79700 KB Output is correct
3 Correct 64 ms 79804 KB Output is correct
4 Correct 70 ms 79660 KB Output is correct
5 Correct 55 ms 79652 KB Output is correct
6 Correct 58 ms 79628 KB Output is correct
7 Correct 58 ms 79768 KB Output is correct
8 Correct 57 ms 79700 KB Output is correct
9 Correct 74 ms 79768 KB Output is correct
10 Correct 67 ms 80212 KB Output is correct
11 Correct 74 ms 79872 KB Output is correct
12 Correct 58 ms 79956 KB Output is correct
13 Correct 57 ms 79696 KB Output is correct
14 Correct 57 ms 79956 KB Output is correct
15 Correct 58 ms 79888 KB Output is correct
16 Correct 74 ms 80212 KB Output is correct
17 Correct 102 ms 89168 KB Output is correct
18 Correct 93 ms 88432 KB Output is correct
19 Correct 116 ms 89168 KB Output is correct
20 Correct 93 ms 87888 KB Output is correct
21 Correct 91 ms 87888 KB Output is correct
22 Correct 119 ms 95516 KB Output is correct
23 Correct 81 ms 83752 KB Output is correct
24 Correct 99 ms 89344 KB Output is correct
25 Correct 67 ms 80212 KB Output is correct
26 Correct 83 ms 82808 KB Output is correct
27 Correct 80 ms 81236 KB Output is correct
28 Correct 234 ms 122304 KB Output is correct
29 Correct 375 ms 185940 KB Output is correct
30 Correct 594 ms 294360 KB Output is correct
31 Correct 592 ms 292888 KB Output is correct
32 Correct 253 ms 130960 KB Output is correct
33 Correct 630 ms 296928 KB Output is correct
34 Correct 609 ms 296984 KB Output is correct
35 Correct 174 ms 119124 KB Output is correct
36 Correct 485 ms 280072 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 82768 KB Output is correct
2 Correct 81 ms 82964 KB Output is correct
3 Correct 122 ms 96084 KB Output is correct
4 Correct 112 ms 93064 KB Output is correct
5 Correct 155 ms 105812 KB Output is correct
6 Correct 165 ms 105928 KB Output is correct
7 Correct 160 ms 105796 KB Output is correct
8 Correct 152 ms 105828 KB Output is correct
9 Correct 303 ms 163156 KB Output is correct
10 Correct 175 ms 99924 KB Output is correct
11 Correct 253 ms 120060 KB Output is correct
12 Correct 69 ms 79700 KB Output is correct
13 Correct 72 ms 79816 KB Output is correct
14 Correct 59 ms 79724 KB Output is correct
15 Correct 58 ms 79696 KB Output is correct
16 Correct 62 ms 79660 KB Output is correct
17 Correct 57 ms 79660 KB Output is correct
18 Correct 86 ms 82948 KB Output is correct
19 Correct 85 ms 82768 KB Output is correct
20 Correct 84 ms 82772 KB Output is correct
21 Correct 89 ms 82732 KB Output is correct
22 Correct 337 ms 165204 KB Output is correct
23 Correct 417 ms 178768 KB Output is correct
24 Correct 484 ms 182352 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 111124 KB Output is correct
2 Correct 172 ms 118120 KB Output is correct
3 Correct 83 ms 82772 KB Output is correct
4 Correct 82 ms 82772 KB Output is correct
5 Correct 602 ms 298320 KB Output is correct
6 Correct 855 ms 305392 KB Output is correct
7 Correct 60 ms 79784 KB Output is correct
8 Correct 240 ms 161812 KB Output is correct
9 Correct 283 ms 165792 KB Output is correct
10 Correct 146 ms 110896 KB Output is correct
11 Correct 171 ms 118072 KB Output is correct
12 Correct 58 ms 79696 KB Output is correct
13 Correct 57 ms 79700 KB Output is correct
14 Correct 58 ms 79704 KB Output is correct
15 Correct 57 ms 79700 KB Output is correct
16 Correct 77 ms 82772 KB Output is correct
17 Correct 82 ms 82932 KB Output is correct
18 Correct 171 ms 119976 KB Output is correct
19 Correct 214 ms 161312 KB Output is correct
20 Correct 179 ms 115504 KB Output is correct
21 Correct 168 ms 107104 KB Output is correct
22 Correct 175 ms 115620 KB Output is correct
23 Correct 179 ms 119464 KB Output is correct
24 Correct 87 ms 82768 KB Output is correct
25 Correct 81 ms 82964 KB Output is correct
26 Correct 122 ms 96084 KB Output is correct
27 Correct 112 ms 93064 KB Output is correct
28 Correct 155 ms 105812 KB Output is correct
29 Correct 165 ms 105928 KB Output is correct
30 Correct 160 ms 105796 KB Output is correct
31 Correct 152 ms 105828 KB Output is correct
32 Correct 70 ms 79696 KB Output is correct
33 Correct 60 ms 79700 KB Output is correct
34 Correct 64 ms 79804 KB Output is correct
35 Correct 70 ms 79660 KB Output is correct
36 Correct 55 ms 79652 KB Output is correct
37 Correct 58 ms 79628 KB Output is correct
38 Correct 58 ms 79768 KB Output is correct
39 Correct 57 ms 79700 KB Output is correct
40 Correct 74 ms 79768 KB Output is correct
41 Correct 67 ms 80212 KB Output is correct
42 Correct 74 ms 79872 KB Output is correct
43 Correct 58 ms 79956 KB Output is correct
44 Correct 57 ms 79696 KB Output is correct
45 Correct 57 ms 79956 KB Output is correct
46 Correct 58 ms 79888 KB Output is correct
47 Correct 74 ms 80212 KB Output is correct
48 Correct 102 ms 89168 KB Output is correct
49 Correct 93 ms 88432 KB Output is correct
50 Correct 116 ms 89168 KB Output is correct
51 Correct 93 ms 87888 KB Output is correct
52 Correct 91 ms 87888 KB Output is correct
53 Correct 119 ms 95516 KB Output is correct
54 Correct 81 ms 83752 KB Output is correct
55 Correct 99 ms 89344 KB Output is correct
56 Correct 67 ms 80212 KB Output is correct
57 Correct 83 ms 82808 KB Output is correct
58 Correct 80 ms 81236 KB Output is correct
59 Correct 234 ms 122304 KB Output is correct
60 Correct 375 ms 185940 KB Output is correct
61 Correct 594 ms 294360 KB Output is correct
62 Correct 592 ms 292888 KB Output is correct
63 Correct 253 ms 130960 KB Output is correct
64 Correct 630 ms 296928 KB Output is correct
65 Correct 609 ms 296984 KB Output is correct
66 Correct 174 ms 119124 KB Output is correct
67 Correct 485 ms 280072 KB Output is correct
68 Correct 303 ms 163156 KB Output is correct
69 Correct 175 ms 99924 KB Output is correct
70 Correct 253 ms 120060 KB Output is correct
71 Correct 69 ms 79700 KB Output is correct
72 Correct 72 ms 79816 KB Output is correct
73 Correct 59 ms 79724 KB Output is correct
74 Correct 58 ms 79696 KB Output is correct
75 Correct 62 ms 79660 KB Output is correct
76 Correct 57 ms 79660 KB Output is correct
77 Correct 86 ms 82948 KB Output is correct
78 Correct 85 ms 82768 KB Output is correct
79 Correct 84 ms 82772 KB Output is correct
80 Correct 89 ms 82732 KB Output is correct
81 Correct 337 ms 165204 KB Output is correct
82 Correct 417 ms 178768 KB Output is correct
83 Correct 484 ms 182352 KB Output is correct
84 Correct 595 ms 290280 KB Output is correct
85 Correct 564 ms 288776 KB Output is correct
86 Correct 923 ms 311516 KB Output is correct
87 Correct 938 ms 312792 KB Output is correct
88 Correct 57 ms 79708 KB Output is correct
89 Correct 960 ms 313052 KB Output is correct
90 Correct 457 ms 210168 KB Output is correct
91 Correct 347 ms 183288 KB Output is correct