oj.uz

Submission #627716

# Submission time Handle Problem Language Result Execution time Memory
627716 2022-08-12T20:00:28 Z Yomapeed Catfish Farm (IOI22_fish) C++17
58 / 100
 1000 ms 82576 KB 
#include "fish.h"
#include<bits/stdc++.h>
#define pi 3.141592653589793238
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define MOD 1000000007
#define INF 999999999999999999 
#define pb push_back
#define ff first
#define ss second 
#define printclock cerr<<"Time : "<<1000*(long double)clock()/(long double)CLOCKS_PER_SEC<<"ms\n";
#define ll long long
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll B) { return (unsigned ll)rng() % B;}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void chmax(ll &a, ll b){
    a = max(a, b);
}
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    
    vector<vector<int>> adj(n);
    for(int i = 0; i < m; i++){
        adj[x[i]].pb(y[i]);
    }
    
    map<pair<int, int>, ll> score;
    for(int i = 0; i < m; i++){
        score[{x[i], y[i]}] = w[i];
    }
    map<ll, ll> L, R, S;
    L[-1] = R[-1] = 0;
    S[-1] = 0;
    for(int i = 0; i < n; i++){
        set<int> nys, nyx;
        nys.insert(-1);
        for(auto u : adj[i]){
            nys.insert(u);
        }
        nyx = nys;
        if(i) {
            for(auto [a, b] : L){
                nys.insert(a);
            }
            for(auto u : adj[i - 1]){
                nyx.insert(u);
            }
        }    
        if(i + 1 < n){
            for(auto u : adj[i + 1]){
                nys.insert(u);
                nyx.insert(u);
            }

        }
        vector<int> ny;
        for(auto u : nys) ny.pb(u);
        map<ll, ll> nL, nR, nS, nSS;
        
        for(auto u : ny){
            nS[u] += score[{i, u}];
            nSS[u] = S[u];
        }
        int p = -1;
        nSS = S;
        ll mmx = 0;
        for(auto [a, b] : nS){
            chmax(mmx, nSS[a]);
            if(p != -1){
                nS[a] += nS[p];
                nSS[a] = mmx;
            }
            p = a;
        }
        S = nSS;
        {
            //Case 1.1
            ll mx = -INF;
            for(auto j : ny){
                if(i){
                    chmax(mx, L[j]);
                }
                chmax(nL[j], mx);
            }
        }
        {
            //Case 1.2
            ll mx = -INF;
            for(int k = ny.size() - 1; k >= 0; k--){
                int j = ny[k];
                chmax(nL[j], mx - nS[j]);
                if(i){
                    chmax(mx, L[j] + nS[j]);
                }
            }
        }
        {
            //Case 2.1
            ll mx = -INF;
            for(auto j : ny){
                if(i){
                    chmax(mx, R[j] - S[j]);
                }
                chmax(nL[j], mx + S[j]);
            }

        }
        {
            //Case 2.2
            ll mx = -INF;
            for(int k = ny.size() - 1; k >= 0; k--){
                int j = ny[k];
                chmax(nL[j], mx - nS[j]);
                if(i){
                    chmax(mx, R[j] + nS[j]);
                }
            }
        }
        {
            //Case 3.1
            ll mx = -INF;
            for(auto j : ny){               
                chmax(mx, L[j]);
            }
            for(auto j : ny){               
                chmax(nR[j], mx);
            }
        }
        {
            //Case 4.1
            ll mx = -INF;
            for(auto j : ny){
                chmax(mx, R[j] - S[j]);
                chmax(nR[j], mx + S[j]);
            }

        }
        {
            //Case 4.2
            ll mx = -INF;
            for(int k = ny.size() - 1; k >= 0; k--){
                int j = ny[k];
                chmax(nR[j], mx);
                chmax(mx, R[j]);
            }
        }
        map<ll,ll> nnL, nnR, nnS;
        for(auto u : nyx){
            nnL[u] = nL[u];
            nnR[u] = nR[u];
            nnS[u] = nS[u];
        }
        swap(L, nnL);
        swap(R, nnR);
        swap(S, nnS);
        // cout << i << " $$$$$$$$$$$$$$$$$$$$$" << endl;
        // for(auto [a, b] : L){
        //     cout << a << " : " << b << " " << R[a] << endl;
        // }
    }
    ll ans = 0;
    for(auto [a, b] : L){
        chmax(ans, b);
        // cout << a << " : " << b << endl;
        chmax(ans, R[a]);
    }
    return ans;
}

Compilation message

fish.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("O3")
      | 
fish.cpp:7: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    7 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 73752 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Execution timed out 1093 ms 82576 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 8840 KB Output is correct
2 Correct 72 ms 8796 KB Output is correct
3 Correct 138 ms 14672 KB Output is correct
4 Correct 137 ms 13836 KB Output is correct
5 Correct 227 ms 20556 KB Output is correct
6 Correct 203 ms 20600 KB Output is correct
7 Correct 225 ms 20700 KB Output is correct
8 Correct 223 ms 20548 KB Output is correct

Subtask #4
14.0 / 14.0

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

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 4 ms 468 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 5 ms 468 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 7 ms 596 KB Output is correct
17 Correct 177 ms 5744 KB Output is correct
18 Correct 164 ms 5188 KB Output is correct
19 Correct 167 ms 5540 KB Output is correct
20 Correct 119 ms 4768 KB Output is correct
21 Correct 116 ms 4624 KB Output is correct
22 Correct 335 ms 9036 KB Output is correct
23 Correct 72 ms 2508 KB Output is correct
24 Correct 181 ms 5764 KB Output is correct
25 Correct 5 ms 468 KB Output is correct
26 Correct 56 ms 2132 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 4 ms 468 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 5 ms 468 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 2 ms 340 KB Output is correct
16 Correct 7 ms 596 KB Output is correct
17 Correct 177 ms 5744 KB Output is correct
18 Correct 164 ms 5188 KB Output is correct
19 Correct 167 ms 5540 KB Output is correct
20 Correct 119 ms 4768 KB Output is correct
21 Correct 116 ms 4624 KB Output is correct
22 Correct 335 ms 9036 KB Output is correct
23 Correct 72 ms 2508 KB Output is correct
24 Correct 181 ms 5764 KB Output is correct
25 Correct 5 ms 468 KB Output is correct
26 Correct 56 ms 2132 KB Output is correct
27 Correct 17 ms 1428 KB Output is correct
28 Correct 930 ms 24588 KB Output is correct
29 Execution timed out 1090 ms 38552 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 8840 KB Output is correct
2 Correct 72 ms 8796 KB Output is correct
3 Correct 138 ms 14672 KB Output is correct
4 Correct 137 ms 13836 KB Output is correct
5 Correct 227 ms 20556 KB Output is correct
6 Correct 203 ms 20600 KB Output is correct
7 Correct 225 ms 20700 KB Output is correct
8 Correct 223 ms 20548 KB Output is correct
9 Correct 471 ms 39320 KB Output is correct
10 Correct 190 ms 14840 KB Output is correct
11 Correct 449 ms 29272 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 83 ms 8876 KB Output is correct
19 Correct 74 ms 8884 KB Output is correct
20 Correct 72 ms 8780 KB Output is correct
21 Correct 74 ms 8780 KB Output is correct
22 Correct 608 ms 38236 KB Output is correct
23 Correct 725 ms 45272 KB Output is correct
24 Correct 751 ms 49392 KB Output is correct

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1069 ms 73752 KB Time limit exceeded
2 Halted 0 ms 0 KB -