Submission #210586

#	Time	Username	Problem	Language	Result	Execution time	Memory
210586		mayhoubsaleh	Visiting Singapore (NOI20_visitingsingapore)	C++14	0 / 100	222 ms	45688 KiB

VisitingSingapore

#include <bits/stdc++.h>
#include <string>
#define ll long long
#define pb push_back
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);


using namespace std;
const int maxn=5050;
int n,k,m,a,b;
int s[maxn],t[maxn],val[maxn];
int dp[maxn][maxn][2];
bool vis[maxn][maxn][2];

int solve(int i,int j,int took,int happy=0){
    //cout<<i<<' '<<j<<' '<<took<<' '<<happy<<endl;
    if(vis[i][j][took])return dp[i][j][took];
    vis[i][j][took]=1;
    int &ans=dp[i][j][took];
    if(i==n&&j==m)return ans=happy;
    if(i==n)return ans=solve(i,j+1,0,happy+b+(a*took));
    if(j==m)return ans=solve(i+1,j,took,happy);
    ans=solve(i,j+1,0,happy+b+(a*took));
    //return ans;
    if(s[i]==t[j]){
        ans=max(ans,solve(i+1,j+1,1,happy+val[s[i]]));
    }
    ans=max(ans,solve(i+1,j,took,happy));
    return ans;
}

void path(int i,int j,int took){
    cout<<i<<' '<<j<<' '<<took<<endl;
    if(i==n||j==m)return;
    int ans=dp[i][j][took];
    if(ans=b+(a*took)+solve(i,j+1,0)){
        path(i,j+1,0);
        return;
    }
    if(s[i]==t[j]&&ans==solve(i+1,j+1,1)+val[s[i]]){
        cout<<j<<' ';
        path(i+1,j+1,1);
        return;
    }
    if(ans==solve(i+1,j,took))path(i+1,j,took);
}

int main()
{
    IOS
    cin>>k>>n>>m>>a>>b;
    //cout<<a<<' '<<b<<endl;
    for(int i=1;i<=k;i++)cin>>val[i];
    for(int i=0;i<n;i++)cin>>s[i];
    for(int i=0;i<m;i++)cin>>t[i];

    //for(int i=1;i<=k;i++)cout<<val[i]<<' ';cout<<endl;
    //for(int i=0;i<n;i++)cout<<s[i]<<' ';cout<<endl;
    //for(int i=0;i<m;i++)cout<<t[i]<<' ';cout<<endl;
    cout<<solve(0,0,1)<<endl;
    //path(0,0,1);
    //cout<<endl;
    return 0;
}

Compilation message (stderr)

VisitingSingapore.cpp: In function 'void path(int, int, int)':
VisitingSingapore.cpp:36:11: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
     if(ans=b+(a*took)+solve(i,j+1,0)){
        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 6
• Subtask 3: 0 / 12
• Subtask 4: 0 / 7
• Subtask 5: 0 / 8
• Subtask 6: 0 / 13
• Subtask 7: 0 / 50