Submission #1261151

#TimeUsernameProblemLanguageResultExecution timeMemory
1261151yf_yusufJakarta Skyscrapers (APIO15_skyscraper)C++20
57 / 100
1095 ms4284 KiB
//```// YF YUSUF #define YF ios_base::sync_with_stdio(0);cout.setf(ios::fixed); #define YUSUF cout.precision(0);cout.tie(0);cin.tie(0); // #include <bits/stdc++.h> #include <iostream> #include <vector> #include <set> #include <map> #include <algorithm> #include <cmath> #include <numeric> #include <queue> #include <stack> #include <cassert> #include <climits> #include <string> #include <cstdlib> #include <random> #include <ctime> using namespace std; #ifdef YF_CHECK bool Output=1; #else #pragma GCC optimize ("unroll-loops") #pragma GCC optimize ("inline") #pragma GCC optimize ("Ofast") #pragma GCC optimize ("O3") bool Output=0; #endif using ll = int; using ld = long double; using sll = set <ll>; using vll = vector <ll>; using mll = map <ll,ll>; using pll = pair <ll,ll>; using vvl = vector <vll>; using vpll = vector <pll>; template<class T>T MIN(T&a,T b){a=min(a,b);return a;} template<class T>T MAX(T&a,T b){a=max(a,b);return a;} #define all(a) a.begin(),a.end() #define sgr v+v+1,(tl+tr)/2+1,tr #define sgl v+v,tl,(tl+tr)/2 #define pb push_back #define ins insert #define S second #define F first mt19937_64 MT(time(0)); ll BP(ll a,ll b,ll mod=1e9+7){ if(b==0)return 1; ll q=BP(a,b/2,mod); return ((q*q)%mod*(b%2?a:1ll))%mod; } ll f(ll x){return x*(x+1)/2;} ll dup(ll a,ll b){return (a+b-1)/b;} ll lcm(ll a,ll b){return a/__gcd(a,b)*b;} ll invf(ll x){return (-1+sqrt(1+8*x))/2;} const ll mod=998244353; using LL = long long; using PLI = pair<LL, int>; const LL INF=1e18; const ll inf=1e9+7; const ll N =1e6+7; void YF_MAIN(ll TEST){ ll n,m; cin>>n>>m; vpll a(m); vvl open(n+1); for(auto &[b, p] : a){ cin>>b>>p; if(p>=n)continue; open[b].pb(p); } for(auto &v : open){ sort(all(v)); reverse(all(v)); } ll s=a[0].F,f=a[1].F; priority_queue <PLI,vector<PLI>,greater<PLI> > q; vector<LL> d(n+1,INF); d[s]=0; q.push({0,s}); while(q.size()){ auto [dist,v] = q.top(); q.pop(); if(dist > d[v])continue; if(v == f)break; for(auto p : open[v]){ for(int to = v%p; to < n; to+=p){ LL now = abs(to-v)/p; if(d[to] > d[v] + now){ d[to] = d[v] + now; q.push({d[to], to}); } } } } cout<<(d[f]==INF ? -1 : d[f]); } bool TECT=0; bool OUTP=0; ll lg(ll x){return (x ? 63 - __builtin_clzll(x) : -1);} const ll SN=2e0 + 7; ll SM[SN]; const ll FN=2e0 + 7; ll FACT[FN], inv[FN], FMOD=inf; ll PER(ll n,ll k){return FACT[n] *inv[n-k]%FMOD;} ll CNK(ll n,ll k){return PER(n,k)*inv[k ]%FMOD;} void BEFORE(){ for(ll i=2;i<SN;i++){ if(SM[i])continue; for(ll j=i;j<SN;j+=i) MAX(SM[j],i); } FACT[0]=inv[0]=1; for(int i=1;i<FN;i++){ FACT[i]=FACT[i-1]*i%FMOD; if(i<5e5+7)inv[i]=BP(FACT[i],FMOD-2,FMOD); } } signed main(){ // freopen(("input.txt"),"r",stdin);freopen(("output.txt"),"w",stdout); if(OUTP){YF YUSUF} cout<<(0 && Output ? "\nYF_OUTPUT:\n\n" : ""); int TEST=1; if(TECT) cin>>TEST; BEFORE(); for(int T=1;T<=TEST;T++){ // cout<<"Case "<<T<<": "; YF_MAIN(T); cout<<(T==TEST ? "" : "\n"); } return 0; } //```
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