oj.uz

Submission #1023910

# Submission time Handle Problem Language Result Execution time Memory
1023910 2024-07-15T09:26:12 Z Otalp Catfish Farm (IOI22_fish) C++17
9 / 100
 759 ms 165816 KB 
#include "fish.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
#define pii pair<int, int>
#define ff first
#define ss second

const int MAXN = 400100;
int n, w[MAXN], m;
pii a[MAXN];

namespace B{
    map<ll, ll> d[200100];
    map<ll, ll> dp[200100];
    map<ll, ll> pref[200100];
    map<ll, ll> ddp[200100];
    vector<ll> pos[200100];
    ll suf[200100];
    ll solve(){
        for(ll i=1; i<=m; i++){
            d[a[i].ff][a[i].ss] += w[i];
            pos[a[i].ff].pb(a[i].ss);
        }
        d[0][0] = 1;
        pos[0].pb(0);
        for(ll i=1; i<=n; i++){
            sort(pos[i].begin(), pos[i].end());
        }
        for(ll i=1; i<=n; i++){
            dp[0][i] = -1e18;
            ddp[0][i] = -1e18;
        }
        dp[0][0] = 0;
        ddp[0][0] = 0;
        for(ll i=1; i<=n; i++){
            //cout<<"_____________________\n";
            //cout<<i<<'\n';
            vector<ll> alpos;
            for(auto h: pos[i-1]) alpos.pb(h);
            for(auto h: pos[i+1]) alpos.pb(h);
            sort(alpos.begin(), alpos.end());
            for(ll  h: pos[i]){
                ll j = h;
                pref[i][j] = pref[i][j - 1] + d[i][j];
            }
            vector<ll> dpos;
            for(auto h: dp[i-1]){
                dpos.pb(h.ff);
            }
            ll mx = -1e18;
            ll ls = pos[i].size()-1;
            for(ll h = dpos.size()-1; h>=0; h--){
                ll j = dpos[h];
                while(ls > 0 and pos[i][ls] > j) ls--;
                mx = max(mx, dp[i-1][j] + pref[i][j]);
                suf[j] = mx;
            }
            ll pddp = -1e18, pdp = -1e18;
            mx = -1e18;
            for(ll h = dpos.size()-1; h>=0; h--){
                ll j = dpos[h];
                mx = max(mx, dp[i-1][j]);
            }
            ll pls=-1, dpls=-1;
            ls = -1;
            ll lls = -1;
            for(ll j: alpos){
                //cout<<j<<' ';
                while(ls + 1 < dpos.size() and dpos[ls + 1] <= j){
                    ls += 1;
                    while(lls + 1 < pos[i-1].size() and pos[i-1][lls + 1] <= dpos[ls]) lls++;
                    pdp = max(pdp, ddp[i-1][dpos[ls]]-pref[i-1][pos[i-1][lls]]);
                }
                while(pls + 1 < pos[i].size() and pos[i][pls + 1] <= j) pls ++;
                while(dpls + 1 < pos[i-1].size() and pos[i-1][dpls + 1] <= j) dpls ++;
                ddp[i][j] = mx;
                dp[i][j] = 0;
                //if(dpls < 0){
                //    cout<<"asdas\n";
                //    cout<<j<<'\n';
                //    cout<<dpls+1<<'\n';
                //    continue;
                //}
                ddp[i][j] = max(ddp[i][j], pdp + pref[i-1][pos[i-1][dpls]]);
                dp[i][j] = ddp[i][j];
                if(dpos.size() > ls + 1) dp[i][j] = max(dp[i][j], suf[dpos[ls + 1]]-pref[i][pos[i][pls]]);
                dp[i][j] = max(dp[i][j], pdp+pref[i-1][pos[i-1][dpls]]);
            }
            //cout<<'\n';
        }
        //for(ll i=1; i<=n; i++){
        //    for(ll j=0; j<=n; j++){
        //        cout<<dp[i][j]<<' ';
        //    }
        //    cout<<'\n';
        //}
        ll ans = 0;
        for(ll i=0; i<=n; i++) ans = max(ans, dp[n][i]);
        return ans;
    }
}




long long max_weights(int N, int M, vector<int> X, vector<int> Y,
                      vector<int> W) {
    
    n = N;
    m = M;
    for(int i=1; i<=m; i++){
        a[i] = {X[i-1]+1, Y[i-1]+1};
    }
    for(int i=1; i<=m; i++){
        w[i] = W[i-1];
    }
    for(int i=1; i<=n; i++){
        a[i + m] = {i, 0};
        w[i+m] = 0;
    }
    m += n;
    return B::solve();
}

Compilation message

fish.cpp: In function 'long long int B::solve()':
fish.cpp:71:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |                 while(ls + 1 < dpos.size() and dpos[ls + 1] <= j){
      |                       ~~~~~~~^~~~~~~~~~~~~
fish.cpp:73:35: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |                     while(lls + 1 < pos[i-1].size() and pos[i-1][lls + 1] <= dpos[ls]) lls++;
      |                           ~~~~~~~~^~~~~~~~~~~~~~~~~
fish.cpp:76:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |                 while(pls + 1 < pos[i].size() and pos[i][pls + 1] <= j) pls ++;
      |                       ~~~~~~~~^~~~~~~~~~~~~~~
fish.cpp:77:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |                 while(dpls + 1 < pos[i-1].size() and pos[i-1][dpls + 1] <= j) dpls ++;
      |                       ~~~~~~~~~^~~~~~~~~~~~~~~~~
fish.cpp:88:32: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   88 |                 if(dpos.size() > ls + 1) dp[i][j] = max(dp[i][j], suf[dpos[ls + 1]]-pref[i][pos[i][pls]]);
      |                    ~~~~~~~~~~~~^~~~~~~~
fish.cpp:60:16: warning: unused variable 'pddp' [-Wunused-variable]
   60 |             ll pddp = -1e18, pdp = -1e18;
      |                ^~~~

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Incorrect 374 ms 121484 KB 1st lines differ - on the 1st token, expected: '40313272768926', found: '36638591909'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 42588 KB Output is correct
2 Incorrect 759 ms 161164 KB 1st lines differ - on the 1st token, expected: '40604614618209', found: '84649862111'
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 161 ms 104112 KB Output is correct
2 Correct 164 ms 104104 KB Output is correct
3 Correct 191 ms 114236 KB Output is correct
4 Correct 234 ms 115244 KB Output is correct
5 Correct 261 ms 132536 KB Output is correct
6 Correct 277 ms 132532 KB Output is correct
7 Correct 261 ms 132528 KB Output is correct
8 Correct 262 ms 132680 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 42588 KB Output is correct
2 Correct 21 ms 42584 KB Output is correct
3 Correct 18 ms 42668 KB Output is correct
4 Correct 18 ms 42512 KB Output is correct
5 Correct 18 ms 42588 KB Output is correct
6 Correct 18 ms 42720 KB Output is correct
7 Correct 19 ms 42588 KB Output is correct
8 Correct 19 ms 42588 KB Output is correct
9 Correct 25 ms 42840 KB Output is correct
10 Correct 24 ms 43664 KB Output is correct
11 Incorrect 20 ms 43100 KB 1st lines differ - on the 1st token, expected: '278622587073', found: '209821364205'
12 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 42588 KB Output is correct
2 Correct 21 ms 42584 KB Output is correct
3 Correct 18 ms 42668 KB Output is correct
4 Correct 18 ms 42512 KB Output is correct
5 Correct 18 ms 42588 KB Output is correct
6 Correct 18 ms 42720 KB Output is correct
7 Correct 19 ms 42588 KB Output is correct
8 Correct 19 ms 42588 KB Output is correct
9 Correct 25 ms 42840 KB Output is correct
10 Correct 24 ms 43664 KB Output is correct
11 Incorrect 20 ms 43100 KB 1st lines differ - on the 1st token, expected: '278622587073', found: '209821364205'
12 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 42588 KB Output is correct
2 Correct 21 ms 42584 KB Output is correct
3 Correct 18 ms 42668 KB Output is correct
4 Correct 18 ms 42512 KB Output is correct
5 Correct 18 ms 42588 KB Output is correct
6 Correct 18 ms 42720 KB Output is correct
7 Correct 19 ms 42588 KB Output is correct
8 Correct 19 ms 42588 KB Output is correct
9 Correct 25 ms 42840 KB Output is correct
10 Correct 24 ms 43664 KB Output is correct
11 Incorrect 20 ms 43100 KB 1st lines differ - on the 1st token, expected: '278622587073', found: '209821364205'
12 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 161 ms 104112 KB Output is correct
2 Correct 164 ms 104104 KB Output is correct
3 Correct 191 ms 114236 KB Output is correct
4 Correct 234 ms 115244 KB Output is correct
5 Correct 261 ms 132536 KB Output is correct
6 Correct 277 ms 132532 KB Output is correct
7 Correct 261 ms 132528 KB Output is correct
8 Correct 262 ms 132680 KB Output is correct
9 Correct 316 ms 157616 KB Output is correct
10 Correct 181 ms 104256 KB Output is correct
11 Correct 399 ms 165816 KB Output is correct
12 Correct 18 ms 42588 KB Output is correct
13 Correct 21 ms 42724 KB Output is correct
14 Correct 19 ms 42756 KB Output is correct
15 Correct 21 ms 42588 KB Output is correct
16 Correct 18 ms 42584 KB Output is correct
17 Correct 19 ms 42820 KB Output is correct
18 Correct 175 ms 104108 KB Output is correct
19 Correct 165 ms 104104 KB Output is correct
20 Correct 160 ms 103924 KB Output is correct
21 Correct 168 ms 104016 KB Output is correct
22 Incorrect 334 ms 157936 KB 1st lines differ - on the 1st token, expected: '45561826463480', found: '35041184705483'
23 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 374 ms 121484 KB 1st lines differ - on the 1st token, expected: '40313272768926', found: '36638591909'
2 Halted 0 ms 0 KB -