Submission #1085335

#TimeUsernameProblemLanguageResultExecution timeMemory
1085335hahahahaFish 3 (JOI24_fish3)C++17
100 / 100
399 ms49492 KiB
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#define i64 long long #define ld long double #define bit(n,i) ((n>>i)&1) #define pii pair<int,int> #define sz(x) (int)x.size() #define FOR(i,a,b) for(int i=a; i<=b; i++) #define FOD(i,a,b) for(int i=a; i>=b; i--) #define fi first #define se second #define pb push_back #define all(x) x.begin(),x.end() #define __sumairu__ main() #define die_hard_onimai_fan void seggs() #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);} #define brute(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".ans","w",stdout);} #define TIME (1.0*clock()/CLOCKS_PER_SEC) #define FAST ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); #define ai(n) array<int,n> #define dbg(x) {cerr<<#x<<' '<<x<<endl;} #define dbgArr(arr,n) {cerr<<#arr;FOR(_i,1,n)cerr<<' '<<(arr)[_i];cerr<<endl;} template <typename T,typename U> ostream& operator<<(ostream &os,pair<T,U>p){ return os<<"{"<<p.fi<<", "<<p.se<<"}"; } mt19937_64 rd(chrono::steady_clock::now().time_since_epoch().count()); i64 Rand(i64 l,i64 r) { i64 ans=l+1ll*rd()*rd()%(r-l+1); assert(l<=ans&&ans<=r); return ans; } //const i64 base=1e9+7; //const i64 mod=(1ll<<53)+5; #define int long long #define debug 0 const int mod=1e9+7; //const int mod=998244353; const int inf=1e9; ///check the limits, dummy const int N=3e5+5; struct seg { i64 t[N*4],lz[N*4]; void push(int id,int l,int r) { if(!lz[id])return; i64 x=lz[id]; int m=(l+r)/2; t[id*2]+=x*(m-l+1); t[id*2+1]+=x*(r-m); lz[id*2]+=x; lz[id*2+1]+=x; lz[id]=0; } void up(int id,int l,int r,int x,int y,int v) { if(x>r||y<l)return; if(x<=l&&r<=y) { t[id]+=1ll*v*(r-l+1); lz[id]+=v; return; } push(id,l,r); int m=(l+r)/2; up(id*2,l,m,x,y,v); up(id*2+1,m+1,r,x,y,v); t[id]=t[id*2]+t[id*2+1]; } i64 get(int id,int l,int r,int x,int y) { if(x>r||y<l)return 0; if(x<=l&&r<=y)return t[id]; int m=(l+r)/2; push(id,l,r); return get(id*2,l,m,x,y)+get(id*2+1,m+1,r,x,y); } }T; int n,D,q; int ans[N]; int a[N]; vector<pii>query[N]; die_hard_onimai_fan { cin>>n>>D; FOR(i,1,n)cin>>a[i]; cin>>q; FOR(i,1,q) { int l,r; cin>>l>>r; query[r].pb({l,i}); } auto get=[&](int p){return a[p]-T.get(1,1,n,p,p)*D;}; stack<int>s; FOR(i,1,n) { int r=i; while(sz(s)) { int l=s.top(),x=get(r-1),y=get(r); if(x<=y)break; T.up(1,1,n,l,r-1,(x-y+D-1)/D); r=l; s.pop(); } s.push(r); for(auto&&[l,id]:query[i])ans[id]=(get(l)<0?-1:T.get(1,1,n,l,i)); } FOR(i,1,q)cout<<ans[i]<<'\n'; } __sumairu__ { FAST file(""); int tt=1;//cin>>tt; while(tt--)seggs(); cerr<<"\nTime elapsed: "<<TIME<<" s.\n"; } /** 4 2 3 1 2 1 1 1 3 */

Compilation message (stderr)

Main.cpp:57:21: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | #define __sumairu__ main()
      |                     ^~~~
Main.cpp:171:1: note: in expansion of macro '__sumairu__'
  171 | __sumairu__
      | ^~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:59:53: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 | #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
      |                                              ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:174:5: note: in expansion of macro 'file'
  174 |     file("");
      |     ^~~~
Main.cpp:59:83: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 | #define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
      |                                                                            ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:174:5: note: in expansion of macro 'file'
  174 |     file("");
      |     ^~~~
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