oj.uz

Submission #829342

# Submission time Handle Problem Language Result Execution time Memory
829342 2023-08-18T09:33:58 Z tolbi Catfish Farm (IOI22_fish) C++17
58 / 100
 1000 ms 53672 KB 
#include <bits/stdc++.h>
using namespace std;
#define coutarr(x) for (auto &it : x) cout<<it<<" ";cout<<endl;
typedef long long ll;
#include "fish.h"
vector<vector<ll>> dp;
vector<int> X,Y;
int N,M;
vector<vector<pair<int,pair<ll,int>>>> arr;
ll query(int x, int l, int r){
    ll rval = 0;
    for (int i = 0; i < arr[x].size(); i++){
        if (arr[x][i].first>=l && arr[x][i].first<=r){
            rval+=arr[x][i].second.first;
        }
    }
    return rval;
}
int getup(int node){
    int xv = X[node];
    int yv = Y[node];
    for (int i = 0; i < arr[xv].size(); i++){
        if (arr[xv][i].first>yv){
            return arr[xv][i].second.second;
        }
    }
    assert(false);
    return 23;
}
int getdown(int node){
    int xv = X[node];
    int yv = Y[node];
    for (int i = arr[xv].size()-1; i >= 0; i--){
        if (arr[xv][i].first<yv){
            return arr[xv][i].second.second;
        }
    }
    assert(false);
    return 23;
}
int getnextup(int node){
    int xv = X[node];
    int yv = Y[node];
    for (int i = 0; i < arr[xv+1].size(); i++){
        if (arr[xv+1][i].first>=yv){
            return arr[xv+1][i].second.second;
        }
    }
    assert(false);
    return 23;
}
int getnextdown(int node){
    int xv = X[node];
    int yv = Y[node];
    for (int i = arr[xv+1].size()-1; i >= 0; i--){
        if (arr[xv+1][i].first<=yv){
            return arr[xv+1][i].second.second;
        }
    }
    assert(false);
    return 23;
}
long long f(int node, int flag){
    int x = X[node];
    int y = Y[node];
    //cout<<x<<" "<<y<<" "<<flag<<endl;
    if (dp[node][flag]!=-1) return dp[node][flag];
    if (flag==1){
        dp[node][flag]=0;
        if (y<N){
            ll crr = 0;
            int next = getup(node);
            if (x>0) crr = query(x-1,y,Y[next]-1);
            dp[node][flag]=crr+f(getup(node),1);
        }
        if (x+1<N){
            int next = getnextup(node);
            ll crr = query(x,y,Y[next]-1);
            dp[node][flag]=max(dp[node][flag],crr+f(next,1));
            next=getnextdown(node);
            crr = query(x+1,Y[next],y-1);
            dp[node][flag]=max(dp[node][flag],crr+f(next,0));
        }
    }
    else if (flag==0){
        dp[node][flag]=0;
        if (y-1>=0){
            int next = getdown(node);
            dp[node][flag]=query(x,Y[next],y-1)+f(next,0);
        }
        if (x+1<N){
            dp[node][flag]=max(dp[node][flag],f(getnextup(node),0));
            if (y==0){
                dp[node][flag]=max(dp[node][flag],f(M+x+1,2));
            }
        }
    }
    else {
        dp[node][flag]=0;
        if (y<N){
            dp[node][flag]=f(getup(node),2);
        }
        if (x+1<N){
            int next = getnextup(node);
            ll crr = query(x,y,Y[next]-1);
            dp[node][flag]=max(dp[node][flag],crr+f(next,1));
            next=getnextdown(node);
            crr = query(x+1,Y[next],y-1);
            dp[node][flag]=max(dp[node][flag],crr+f(next,0));
        }
    }
    if (flag!=0 && x+2<N){
        dp[node][flag]=max(dp[node][flag],f(M+x+2,1));
    }
    //cout<<x<<" "<<y<<" "<<flag<<" "<<dp[node][flag]<<endl;
    return dp[node][flag];
};

long long max_weights(int _N, int _M, std::vector<int> _X, std::vector<int> _Y, std::vector<int> _W) {
    N=_N;
    vector<int> W;
    arr.resize(N);
    vector<int> bb(N,0);
    for (int i = 0; i < _Y.size(); ++i)
    {
        if (_Y[i]==0) bb[_X[i]]=_W[i];
        else {
            X.push_back(_X[i]);
            Y.push_back(_Y[i]);
            W.push_back(_W[i]);
            M++;
        }
    }
    for (int i = 0; i < N; ++i)
    {
        X.push_back(i);
        Y.push_back(0);
        W.push_back(bb[i]);
    }
    for (int i = 0; i < N; i++){
        X.push_back(i);
        Y.push_back(N);
        W.push_back(0);
    }
    for (int i = 0; i < Y.size(); i++){
        arr[X[i]].push_back({Y[i],{W[i],i}});
    }
    for (int i = 0; i < N; ++i)
    {
        sort(arr[i].begin(), arr[i].end());
    }
    //0 decreasing
    //1 increasing
    //2 increasing, \
    but forbidden to profit from back
    //coutarr(X);
    //coutarr(Y);
    //coutarr(W);
    //cout<<M<<endl;
    dp.resize(Y.size(),vector<ll>(3,-1));
    return f(M,2);
}

Compilation message

fish.cpp:154:5: warning: multi-line comment [-Wcomment]
  154 |     //2 increasing, \
      |     ^
fish.cpp: In function 'll query(int, int, int)':
fish.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<long long int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int i = 0; i < arr[x].size(); i++){
      |                     ~~^~~~~~~~~~~~~~~
fish.cpp: In function 'int getup(int)':
fish.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<long long int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for (int i = 0; i < arr[xv].size(); i++){
      |                     ~~^~~~~~~~~~~~~~~~
fish.cpp: In function 'int getnextup(int)':
fish.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<long long int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for (int i = 0; i < arr[xv+1].size(); i++){
      |                     ~~^~~~~~~~~~~~~~~~~~
fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:124:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |     for (int i = 0; i < _Y.size(); ++i)
      |                     ~~^~~~~~~~~~~
fish.cpp:145:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  145 |     for (int i = 0; i < Y.size(); i++){
      |                     ~~^~~~~~~~~~

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1083 ms 34856 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Execution timed out 1085 ms 43992 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 30436 KB Output is correct
2 Correct 46 ms 30368 KB Output is correct
3 Correct 51 ms 28656 KB Output is correct
4 Correct 52 ms 31284 KB Output is correct
5 Correct 77 ms 32684 KB Output is correct
6 Correct 62 ms 32800 KB Output is correct
7 Correct 68 ms 32828 KB Output is correct
8 Correct 64 ms 32788 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 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 636 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 416 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 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 636 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 416 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 596 KB Output is correct
17 Correct 98 ms 5704 KB Output is correct
18 Correct 103 ms 6476 KB Output is correct
19 Correct 92 ms 6276 KB Output is correct
20 Correct 78 ms 6280 KB Output is correct
21 Correct 80 ms 6280 KB Output is correct
22 Correct 238 ms 11836 KB Output is correct
23 Correct 8 ms 1492 KB Output is correct
24 Correct 43 ms 3924 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 7 ms 1364 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 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 636 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 416 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 596 KB Output is correct
17 Correct 98 ms 5704 KB Output is correct
18 Correct 103 ms 6476 KB Output is correct
19 Correct 92 ms 6276 KB Output is correct
20 Correct 78 ms 6280 KB Output is correct
21 Correct 80 ms 6280 KB Output is correct
22 Correct 238 ms 11836 KB Output is correct
23 Correct 8 ms 1492 KB Output is correct
24 Correct 43 ms 3924 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 7 ms 1364 KB Output is correct
27 Correct 3 ms 1620 KB Output is correct
28 Execution timed out 1070 ms 27380 KB Time limit exceeded
29 Halted 0 ms 0 KB -

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 30436 KB Output is correct
2 Correct 46 ms 30368 KB Output is correct
3 Correct 51 ms 28656 KB Output is correct
4 Correct 52 ms 31284 KB Output is correct
5 Correct 77 ms 32684 KB Output is correct
6 Correct 62 ms 32800 KB Output is correct
7 Correct 68 ms 32828 KB Output is correct
8 Correct 64 ms 32788 KB Output is correct
9 Correct 122 ms 44296 KB Output is correct
10 Correct 66 ms 23472 KB Output is correct
11 Correct 140 ms 46652 KB Output is correct
12 Correct 0 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 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 42 ms 30396 KB Output is correct
19 Correct 43 ms 30404 KB Output is correct
20 Correct 42 ms 30376 KB Output is correct
21 Correct 42 ms 30396 KB Output is correct
22 Correct 114 ms 42636 KB Output is correct
23 Correct 171 ms 53216 KB Output is correct
24 Correct 195 ms 53672 KB Output is correct

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1083 ms 34856 KB Time limit exceeded
2 Halted 0 ms 0 KB -