oj.uz

Submission #680276

# Submission time Handle Problem Language Result Execution time Memory
680276 2023-01-10T12:17:14 Z whqkrtk04 Catfish Farm (IOI22_fish) C++17
53 / 100
 1000 ms 2097156 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, pii> piii;
typedef pair<ll, ll> pll;
typedef pair<ll, pll> plll;
#define fi first
#define se second
const int INF = 1e9+1;
const int P = 1000000007;
const ll LLINF = (ll)1e18+1;
template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v) { for(auto i : v) os << i << " "; os << "\n"; return os; }
template <typename T1, typename T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& p) { os << p.fi << " " << p.se; return os; }

typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<vvll> vvvll;

ll pre(int x, int s, int e, vvll &B) {
    if(x < 0 || x >= B.size()) return 0LL;
    return B[x][e] - B[x][s];
}

vll maxpre(int i, vvvll &D) {
    vll T(D[i-1].size(), 0LL);
    for(int j = 0; j < D[i-1].size(); j++)
        for(int k = 0; k <= j; k++)
            T[j] = max(T[j], D[i-1][j][k]);
    return T;
}

vll maxall(int i, vvvll &D) {
    vll T(D[i-1].size(), 0LL);
    for(int j = 0; j < D[i-1].size(); j++)
        for(int k = 0; k < D[i-1][j].size(); k++)
            T[j] = max(T[j], D[i-1][j][k]);
    return T;
}

ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    bool subtask1 = true, subtask2 = true;
    for(auto i : X) {
        if(i%2) subtask1 = false;
        if(i >= 2) subtask2 = false;
    }
    if(subtask1) {
        ll ans = 0LL;
        for(auto i : W) ans += i;
        return ans;
    }
    if(subtask2) {
        vector<pll> A, B;
        for(int i = 0; i < M; i++) {
            if(X[i]) B.push_back({Y[i], W[i]});
            else A.push_back({Y[i], W[i]});
        }
        sort(A.begin(), A.end());
        sort(B.begin(), B.end());
        if(N == 2) {
            ll a = 0LL, b = 0LL;
            for(auto &i : A) a += i.se;
            for(auto &i : B) b += i.se;
            return max(a, b);
        } else {
            ll tmp = 0LL;
            for(auto &i : B) tmp += i.se;
            B.push_back({N, 0});
            ll ans = tmp;
            for(int i = 0, j = 0; i < B.size(); i++) {
                while(j < A.size() && A[j].fi < B[i].fi) tmp += A[j++].se;
                ans = max(ans, tmp);
                tmp -= B[i].se;
            }
            return ans;
        }
    }

    int MX = min(N, 2+*max_element(X.begin(), X.end()));
    int MY = 2+*max_element(Y.begin(), Y.end());
    vvll A(MX, vll(MY, 0LL));
    for(int i = 0; i < M; i++) A[X[i]][Y[i]] += W[i];
    vvll B(MX, vll(MY, 0LL));
    for(int i = 0; i < MX; i++)
        for(int j = 1; j < MY; j++)
            B[i][j] = B[i][j-1]+A[i][j-1];

    vvvll D(MX, vvll(MY, vll(MY, 0LL)));
    for(int j = 0; j < MY; j++) {
        for(int k = 0; k < MY; k++) {
            if(j > k) D[1][j][k] = pre(2, 0, j, B)+pre(0, k, j, B);
            else D[1][j][k] = pre(2, 0, j, B)+pre(1, j, k, B);
        }
    }
    for(int i = 2; i < MX; i++) {
        vll MP = maxpre(i, D), MA = maxall(i, D);
        for(int j = 0; j < MY; j++) {
            for(int k = 0; k < MY; k++)
                D[i][j][0] = max(D[i][j][0], D[i-1][0][k]+pre(i-1, min(j, k), j, B)+pre(i+1, 0, j, B));
            for(int k = 1; k < MY; k++) {
                if(j > k) D[i][j][k] = MP[k]-pre(i, 0, k, B)+pre(i+1, 0, j, B)+pre(i-1, k, j, B);
                else D[i][j][k] = MA[k]-pre(i, 0, j, B)+pre(i+1, 0, j, B);
            }
        }
    }
    //cout << " " << D;
    
    ll ans = 0LL;
    for(int i = 0; i < MY; i++)
        for(int j = 0; j < MY; j++)
            ans = max(ans, D.back()[i][j]);
    return ans;
}

Compilation message

fish.cpp: In function 'll pre(int, int, int, vvll&)':
fish.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     if(x < 0 || x >= B.size()) return 0LL;
      |                 ~~^~~~~~~~~~~
fish.cpp: In function 'vll maxpre(int, vvvll&)':
fish.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int j = 0; j < D[i-1].size(); j++)
      |                    ~~^~~~~~~~~~~~~~~
fish.cpp: In function 'vll maxall(int, vvvll&)':
fish.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for(int j = 0; j < D[i-1].size(); j++)
      |                    ~~^~~~~~~~~~~~~~~
fish.cpp:39:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for(int k = 0; k < D[i-1][j].size(); k++)
      |                        ~~^~~~~~~~~~~~~~~~~~
fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:73:37: 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]
   73 |             for(int i = 0, j = 0; i < B.size(); i++) {
      |                                   ~~^~~~~~~~~~
fish.cpp:74:25: 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]
   74 |                 while(j < A.size() && A[j].fi < B[i].fi) tmp += A[j++].se;
      |                       ~~^~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2132 KB Output is correct
2 Correct 27 ms 2624 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 102 ms 7276 KB Output is correct
6 Correct 83 ms 7272 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 60 ms 10048 KB Output is correct
3 Correct 75 ms 11828 KB Output is correct
4 Correct 22 ms 3536 KB Output is correct
5 Correct 33 ms 4276 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 30 ms 5716 KB Output is correct
13 Correct 35 ms 6572 KB Output is correct
14 Correct 31 ms 5244 KB Output is correct
15 Correct 34 ms 5700 KB Output is correct
16 Correct 30 ms 5312 KB Output is correct
17 Correct 34 ms 5696 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 26068 KB Output is correct
3 Correct 52 ms 24560 KB Output is correct
4 Correct 48 ms 24404 KB Output is correct
5 Correct 72 ms 28372 KB Output is correct
6 Correct 63 ms 28352 KB Output is correct
7 Correct 67 ms 28348 KB Output is correct
8 Correct 85 ms 28472 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 568 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 468 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 568 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 266 ms 217436 KB Output is correct
16 Correct 6 ms 4052 KB Output is correct
17 Correct 261 ms 219852 KB Output is correct
18 Correct 278 ms 219864 KB Output is correct
19 Correct 273 ms 219944 KB Output is correct
20 Correct 300 ms 219756 KB Output is correct
21 Correct 82 ms 57900 KB Output is correct
22 Correct 268 ms 221672 KB Output is correct
23 Correct 248 ms 218296 KB Output is correct
24 Correct 265 ms 219112 KB Output is correct
25 Correct 2 ms 1612 KB Output is correct
26 Correct 239 ms 218368 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 568 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 266 ms 217436 KB Output is correct
16 Correct 6 ms 4052 KB Output is correct
17 Correct 261 ms 219852 KB Output is correct
18 Correct 278 ms 219864 KB Output is correct
19 Correct 273 ms 219944 KB Output is correct
20 Correct 300 ms 219756 KB Output is correct
21 Correct 82 ms 57900 KB Output is correct
22 Correct 268 ms 221672 KB Output is correct
23 Correct 248 ms 218296 KB Output is correct
24 Correct 265 ms 219112 KB Output is correct
25 Correct 2 ms 1612 KB Output is correct
26 Correct 239 ms 218368 KB Output is correct
27 Execution timed out 1072 ms 2097156 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 26068 KB Output is correct
3 Correct 52 ms 24560 KB Output is correct
4 Correct 48 ms 24404 KB Output is correct
5 Correct 72 ms 28372 KB Output is correct
6 Correct 63 ms 28352 KB Output is correct
7 Correct 67 ms 28348 KB Output is correct
8 Correct 85 ms 28472 KB Output is correct
9 Runtime error 739 ms 2097152 KB Execution killed with signal 9
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2132 KB Output is correct
2 Correct 27 ms 2624 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 102 ms 7276 KB Output is correct
6 Correct 83 ms 7272 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 60 ms 10048 KB Output is correct
9 Correct 75 ms 11828 KB Output is correct
10 Correct 22 ms 3536 KB Output is correct
11 Correct 33 ms 4276 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 30 ms 5716 KB Output is correct
19 Correct 35 ms 6572 KB Output is correct
20 Correct 31 ms 5244 KB Output is correct
21 Correct 34 ms 5700 KB Output is correct
22 Correct 30 ms 5312 KB Output is correct
23 Correct 34 ms 5696 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 50 ms 26068 KB Output is correct
26 Correct 52 ms 24560 KB Output is correct
27 Correct 48 ms 24404 KB Output is correct
28 Correct 72 ms 28372 KB Output is correct
29 Correct 63 ms 28352 KB Output is correct
30 Correct 67 ms 28348 KB Output is correct
31 Correct 85 ms 28472 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 724 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 568 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 2 ms 468 KB Output is correct
46 Correct 266 ms 217436 KB Output is correct
47 Correct 6 ms 4052 KB Output is correct
48 Correct 261 ms 219852 KB Output is correct
49 Correct 278 ms 219864 KB Output is correct
50 Correct 273 ms 219944 KB Output is correct
51 Correct 300 ms 219756 KB Output is correct
52 Correct 82 ms 57900 KB Output is correct
53 Correct 268 ms 221672 KB Output is correct
54 Correct 248 ms 218296 KB Output is correct
55 Correct 265 ms 219112 KB Output is correct
56 Correct 2 ms 1612 KB Output is correct
57 Correct 239 ms 218368 KB Output is correct
58 Execution timed out 1072 ms 2097156 KB Time limit exceeded
59 Halted 0 ms 0 KB -