제출 #981825

#제출 시각아이디문제언어결과실행 시간메모리
981825shadow_samiFish 3 (JOI24_fish3)C++17
20 / 100
188 ms37468 KiB
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for(long long i=0;i<(long long)(n);i++) #define REP(i,k,n) for(long long i=k;i<(long long)(n);i++) #define pb emplace_back #define lb(v,k) (lower_bound(all(v),(k))-v.begin()) #define ub(v,k) (upper_bound(all(v),(k))-v.begin()) #define fi first #define se second #define pi M_PI #define PQ(T) priority_queue<T> #define SPQ(T) priority_queue<T,vector<T>,greater<T>> #define dame(a) {out(a);return 0;} #define decimal cout<<fixed<<setprecision(15); #define all(a) a.begin(),a.end() #define rsort(a) {sort(all(a));reverse(all(a));} #define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());} #define popcnt __builtin_popcountll typedef long long ll; typedef pair<ll,ll> P; typedef tuple<ll,ll,ll> PP; typedef tuple<ll,ll,ll,ll> PPP; using vi=vector<ll>; using vvi=vector<vi>; using vvvi=vector<vvi>; using vvvvi=vector<vvvi>; using vp=vector<P>; using vvp=vector<vp>; using vb=vector<bool>; using vvb=vector<vb>; const ll inf=5001001001001001001; const ll INF=1001001001; const ll mod=1000000007; const double eps=1e-10; template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;} template<class T> bool chmax(T&a,T b){if(a<b){a=b;return true;}return false;} template<class T> void out(T a){cout<<a<<'\n';} template<class T> void outp(T a){cout<<'('<<a.fi<<','<<a.se<<')'<<'\n';} template<class T> void outvp(T v){rep(i,v.size())cout<<'('<<v[i].fi<<','<<v[i].se<<')';cout<<'\n';} template<class T> void outvvp(T v){rep(i,v.size())outvp(v[i]);} template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';} template<class T> void outvv(T v){rep(i,v.size())outv(v[i]);} template<class T> bool isin(T x,T l,T r){return (l)<=(x)&&(x)<=(r);} template<class T> void yesno(T b){if(b)out("yes");else out("no");} template<class T> void YesNo(T b){if(b)out("Yes");else out("No");} template<class T> void YESNO(T b){if(b)out("YES");else out("NO");} template<class T> void outset(T s){auto itr=s.begin();while(itr!=s.end()){if(itr!=s.begin())cout<<' ';cout<<*itr;itr++;}cout<<'\n';} void outs(ll a,ll b){if(a>=inf-100)out(b);else out(a);} ll gcd(ll a,ll b){if(b==0)return a;return gcd(b,a%b);} ll modpow(ll a,ll b){ll res=1;a%=mod;while(b){if(b&1)res=res*a%mod;a=a*a%mod;b>>=1;}return res;} int main(){ cin.tie(0); ios::sync_with_stdio(false); // #ifndef ONLINE_JUDGE // freopen("input1.txt", "r", stdin); // freopen("output1.txt", "w", stdout); // freopen("error1.txt", "w", stderr); // #endif // ONLINE_JUDGE ll n,d;cin>>n>>d; vi a(n);rep(i,n)cin>>a[i]; ll q;cin>>q; vvp query(n); rep(i,q){ ll l,r;cin>>l>>r;l--;r--; query[r].pb(l,i); } vi v(n),ans(q); for(ll i=n-2;i>=0;i--){ if(a[i]>=a[i+1])v[i]=v[i+1]+(a[i]-a[i+1]+d-1)/d; // else v[i]=v[i+1]-(a[i+1]-a[i])/d; } vi rui(n+1); rep(i,n)rui[i+1]=rui[i]+v[i]; vp st;st.pb(-1,0); rep(i,n){ while(st.size()>1&&v[st.back().fi]>=v[i])st.pop_back(); st.pb(i,st.back().se+v[i]*(i-st.back().fi)); for(auto x:query[i]){ ll idx=lb(st,P(x.fi,-inf)); ans[x.se]=st.back().se-st[idx-1].se-v[st[idx].fi]*(x.fi-1-st[idx-1].fi); ans[x.se]=rui[i+1]-rui[x.fi]-ans[x.se]; if(a[x.fi]<d*(v[x.fi]-v[st[idx].fi]))ans[x.se]=-1; } } for(ll x:ans)out(x); }
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