Submission #923921

#	Time	Username	Problem	Language	Result	Execution time	Memory
923921		ezzzay	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	0 / 100	0 ms	348 KiB

skyscraper

#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define ff first
#define ss second
#define pb push_back
#define inf 1e17
const int N=15;
int arr[N][N];
int cur[N],pw[N];
signed main(){
    int n,m;
    cin>>n>>m;
    vector<int>v;
    for(int i=0;i<m;i++){
        cin>>cur[i]>>pw[i];
        
    }
    for(int i=0;i<m;i++)v.pb(i);
    int ans=INT_MAX;
    do{
        if(v[m-1]!=1 or v[0]!=0)continue;
        
        int s=0;
        bool u=0;
        for(int i=0;i<m-1;i++){
            int k=abs(cur[v[i]]-cur[v[i+1]]);
            int h=k/pw[i];
            if(k%pw[i])u=1;
           
            s+=h;
        };
        
        if(u==0)ans=min(ans,s);
        
    }while(next_permutation(v.begin(),v.end()));
    if(ans==INT_MAX){
        cout<<-1;
    }
    else{
        cout<<ans;
    }
    
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 43