Submission #716646

#	Time	Username	Problem	Language	Result	Execution time	Memory
716646		Huseyn123	Catfish Farm (IOI22_fish)	C++17	18 / 100	89 ms	55308 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
#define MAX 100001
#define INF LLONG_MAX
#define MOD 1000000007
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ins insert
#define ff first
#define ss second
#define gett(x,m) get<m>(x)
#define all(a) a.begin(),a.end()
#define lb(a,b) lower_bound(all(a),b)
#define ub(a,b) upper_bound(all(a),b)
#define sortv(a) sort(all(a))
#define sorta(a,sz) sort(a,a+sz)
#define inputar(a,b){\
    for(int i=0;i<b;i++){\
        cin >> a[i];\
    }\
}
#define inputvec(a,b){\
    for(int i=0;i<b;i++){\
        ll num;\
        cin >> num;\
        a.pb(num);\
    }\
}
#define outputar(a,b){\
    for(int i=0;i<b;i++){\
        cout << a[i] << " ";\
    }\
    cout << "\n";\
}
#define outputvec(a){\
    for(auto x:a){\
        cout << x << " ";\
    }\
    cout << "\n";\
}
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef tuple<ll,ll,ll> tll;
typedef pair<ll,ll> pll;
typedef double db;
typedef long double ldb;
ll n,q,t=1,m,n2,m2,k,cnt=0,a[MAX],b[MAX],d[MAX],x,y,z,x2,y2,z2,res1=0,cnt1,cnt2,cnt3;
ll dp[301][301];
ll arr[301][301];
ll comp[301][301][301];
long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W){
    bool ok=false;
    bool ok2=false;
    bool ok3=false;
    for(int i=0;i<M;i++){
        if(X[i]%2){
            ok=true;
        }
        if(Y[i]!=0){
            ok2=true;
        }
        if(X[i]>1){
            ok3=true;
        }
        a[X[i]]=W[i];
        if(X[i]==0){
            b[Y[i]]=W[i];
        }
        else{
            d[Y[i]]=W[i];
        }
    }
    if(!ok){
        ll res=0;
        for(int i=0;i<M;i++){
            res+=W[i];
        }
        return res;
    }
    if(!ok2){
        ll res=0;
        ll dp[N][2];
        dp[0][0]=dp[0][1]=0;
        dp[1][0]=a[1];
        dp[1][1]=a[0];
        for(int i=2;i<N;i++){
            dp[i][0]=dp[i-1][0];
            dp[i][1]=dp[i-1][1];
            dp[i][0]=max(dp[i][0],dp[i-1][1]+a[i]);
            dp[i][1]=max(dp[i][1],max(dp[i-2][0],dp[i-2][1])+a[i-1]);
        }
        return max(dp[N-1][0],dp[N-1][1]);
    }
    if(!ok3){
        for(int i=1;i<N;i++){
            b[i]+=b[i-1];
            d[i]+=d[i-1];
        }
        ll res=max(b[N-1],d[N-1]);
        if(N>2){
            for(int i=0;i<N;i++){
                res=max(res,b[i]+d[N-1]-d[i]);
            }
        }
        return res;
    }
    for(int i=0;i<=N;i++){
        for(int j=0;j<=N;j++){
            dp[i][j]=0;
            arr[i][j]=0;
        }
    }
    for(int i=0;i<=N;i++){
        for(int j=0;j<=N;j++){
            for(int z=0;z<=N;z++){
                comp[i][j][z]=0;
            }
        }
    }
    for(int i=0;i<M;i++){
        arr[X[i]+1][Y[i]+1]=(ll) W[i];
    }
    for(int z=1;z<=N;z++){
    for(int i=z;i<=N;i++){
        for(int j=1;j<=N;j++){
            comp[z][i][j]=max(comp[z][i-1][j],comp[z][i][j-1]);
            comp[z][i][j]=max(comp[z][i][j],comp[z][i-1][j-1]+arr[i][j]);
        }
    }
    }
    for(int i=2;i<=N;i++){
        for(int z=0;z<=N;z++){
            a[z]=b[z]=d[z]=0;
        }
        ll mx=0;
        for(int j=N;j>=0;j--){
            if(dp[i-1][j]>mx){
                mx=dp[i-1][j];
            }
            dp[i][j]=max(dp[i][j],mx);
            mx+=arr[i][j];
        }
        for(int z=i-1;z>=1;z--){
            ll h=(z>1);
            mx=0;
            for(int j=N;j>=0;j--){
                if(dp[z-1][j]>mx){
                    mx=dp[z-1][j];
                }
                d[j]=mx;
                mx+=h*arr[z][j];
            }
            mx=0;
            for(int j=0;j<=N;j++){
                mx=max(mx,d[j]+arr[z][j]-comp[z+1][i-1][j]);
                dp[i][j]=max(dp[i][j],mx+comp[z+1][i-1][j]);
            }
        }
    }
    ll res=0;
    for(int i=0;i<=N;i++){
        res=max(res,dp[N][i]);
    }
    return res;
}

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:83:12: warning: unused variable 'res' [-Wunused-variable]
   83 |         ll res=0;
      |            ^~~

• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 9 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16