Submission #884202

#	Time	Username	Problem	Language	Result	Execution time	Memory
884202		vjudge1	Travelling Merchant (APIO17_merchant)	C++17	0 / 100	1063 ms	293004 KiB

merchant

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define f first
#define s second
using namespace std;
ll n,m,k,start;
ll a[105][1005],b[105][1005];
bool vis[105];
vector<pair<ll,ll> >v[105];
vector<pair<vector<ll>,ll> >loop;
vector<ll>temp;
set<set<ll> >check;
void dfs(ll t,ll parent,ll cost){
    temp.pb(t);
    if(t==start and temp.size()>1){
        temp.erase(temp.end()-1);
        set<ll>st;
        for(auto i:temp){
            st.insert(i);
        }
        temp.pb(t);
        if(check.find(st)==check.end()){
            check.insert(st);
            loop.pb({temp,cost});
        }
    }
    vis[t]=1;
    vis[start]=0;
    for(auto i:v[t]){
        if(!vis[i.f] and i.f!=parent){
            cost+=i.s;
            dfs(i.f,t,cost);
            cost-=i.s;
        }
    }
    temp.erase(temp.end()-1);
    vis[t]=0;
}
int main(){
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++){
        for(int c=1;c<=k;c++){
            cin>>a[i][c]>>b[i][c];
            //a--> buy price
            //b--> sell price 
        }
    }
    ll x,y,w;
    for(int i=0;i<m;i++){
        cin>>x>>y>>w;
        v[x].pb({y,w});
    }
    for(int i=1;i<=n;i++){
        start=i;
        dfs(i,0,0);
        for(int c=1;c<=n;c++){
            vis[c]=0;
        }
    }
    for(int i=0;i<loop.size();i++){
        ll dp[n+5][k+5];
        for(int e=1;e<loop[i].f.size();e++){
            for(int c=1;c<=k;c++){
                dp[loop[i].f[e]][c]=0;
            }
        }
        for(int c=1;c<loop[i].f.size();c++){
            ll t=loop[i].f[c];
            for(int j=1;j<=k;j++){
                if(b[t][j]==-1){
                    continue;
                }
                ll maks=0;
                for(int q=1;q<t;q++){
                    for(int e=1;e<=k;e++){
                        maks=max(maks,dp[t-q][e]);
                    }
                    if(a[t-q][j]==-1){
                        continue;
                    }
                    dp[t][j]=max(dp[t][j],maks-a[t-q][j]+b[t][j]);
                }
            }
        }
        cout<<dp[n][1]<<" "<<dp[n][2]<<endl;
    }
    return 0;
}

Compilation message (stderr)

merchant.cpp: In function 'int main()':
merchant.cpp:62:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::vector<long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     for(int i=0;i<loop.size();i++){
      |                 ~^~~~~~~~~~~~
merchant.cpp:64:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for(int e=1;e<loop[i].f.size();e++){
      |                     ~^~~~~~~~~~~~~~~~~
merchant.cpp:69:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |         for(int c=1;c<loop[i].f.size();c++){
      |                     ~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 21
• Subtask 3: 0 / 33
• Subtask 4: 0 / 34