Submission #1240556

#TimeUsernameProblemLanguageResultExecution timeMemory
1240556thelegendary08Jakarta Skyscrapers (APIO15_skyscraper)C++17
36 / 100
1097 ms64776 KiB
#include<bits/stdc++.h> #define pb push_back #define mp make_pair #define int long long #define vi vector<int> #define vvi vector<vector<int>> #define pii pair<int, int> #define vpii vector<pair<int, int>> #define vc vector<char> #define vb vector<bool> #define mii map<int,int> #define f0r(i,n) for(int i=0;i<n;i++) #define FOR(i,k,n) for(int i=k;i<n;i++) #define all(v) (v).begin(),(v).end() #define rall(v) (v).rbegin(),(v).rend() #define in(a) int a; cin>>a #define in2(a,b) int a,b; cin>>a>>b #define in3(a,b,c) int a,b,c; cin>>a>>b>>c #define in4(a,b,c,d) int a,b,c,d; cin>>a>>b>>c>>d #define vin(v,n); vi v(n); f0r(i,n){cin>>v[i];} #define out(a) cout<<a<<'\n' #define out2(a,b) cout<<a<<' '<<b<<'\n' #define out3(a,b,c) cout<<a<<' '<<b<<' '<<c<<'\n' #define out4(a,b,c,d) cout<<a<<' '<<b<<' '<<c<<' '<<d<<'\n' #define pout(a) cout<<a.first<<' '<<a.second<<'\n' #define vout(v) for(auto u : v){cout<<u<<' ';} cout<<endl #define dout(a) cout<<a<<' '<<#a<<endl #define dout2(a,b) cout<<a<<' '<<#a<<' '<<b<<' '<<#b<<endl #define yn(x); if(x){cout<<"YES"<<'\n';}else{cout<<"NO"<<'\n';} const int leg = 1e9 + 7; const int mod = 998244353; using namespace std; signed main(){ ios::sync_with_stdio(false); cin.tie(NULL); //ifstream cin(".in"); //ofstream cout(".out"); in2(n,m); vi b(m), p(m); f0r(i, m){ cin>>b[i]>>p[i]; } vector<vpii> adj(m); f0r(i,m){ f0r(j, m){ if(i != j){ if(abs(b[i] - b[j]) % p[i] == 0){ adj[i].pb(mp(j, abs(b[i] - b[j]) / p[i])); } } } } priority_queue<pii> q; q.push(mp(0, 0)); vi dist(m,4e18); dist[0] = 0; while(!q.empty()){ int node = q.top().second; q.pop(); for(auto u : adj[node]){ int b = u.first; int w = u.second; if(dist[b] > dist[node] + w){ dist[b] = dist[node] + w; q.push(mp(-dist[b], b)); } } } if(dist[1] == 4e18)out(-1); else out(dist[1]); }
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