Submission #1192172

#TimeUsernameProblemLanguageResultExecution timeMemory
1192172quocbaooPilot (NOI19_pilot)C++20
100 / 100
807 ms95912 KiB
#include<bits/stdc++.h> #define ll long long #define fi first #define se second using namespace std; ll kq[1000004];pair<ll,ll> a[1000004],b[1000004]; struct Node{ ll d,c,to; };Node st[4000005]; ll pt(ll z){ return z*(z+1)/2; } void update(int id,int l,int r,int u,int v){ if (l>u||r<u) return ; if (l==r){ st[id].d=1;st[id].c=1;st[id].to=1; return; } int mid=(l+r)/2; update(id*2,l,mid,u,v);update(id*2+1,mid+1,r,u,v); st[id].to=st[id*2].to+st[id*2+1].to; if (st[id*2].c>0&&st[id*2+1].d>0) { st[id].to+=(pt(st[id*2].c+st[id*2+1].d)-pt(st[id*2].c)-pt(st[id*2+1].d)); } if (st[id*2].d==mid-l+1) st[id].d=st[id*2].d+st[id*2+1].d;else st[id].d=st[id*2].d; if (st[id*2+1].c==r-mid) st[id].c=st[id*2+1].c+st[id*2].c;else st[id].c=st[id*2+1].c; } int main() { if (fopen("THAYDOISO.inp","r")){ freopen("THAYDOISO.inp","r",stdin); freopen("THAYDOISO.out","w",stdout); } ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0); int n,q;cin>>n>>q; for (int i=1;i<=n;i++) { cin>>a[i].fi;a[i].se=i; } for (int i=1;i<=q;i++){ cin>>b[i].fi;b[i].se=i; } sort(a+1,a+n+1); sort(b+1,b+q+1); ll ans=0; b[0].fi=-1;a[n+1].fi=1e9;int d=1; for (int i=1;i<=q;i++){ if (b[i].fi==b[i-1].fi){ kq[b[i].se]=ans;continue; } while (b[i].fi>=a[d].fi){ update(1,1,n,a[d].se,1);d++; } ans=st[1].to; kq[b[i].se]=ans; } for (int i=1;i<=q;i++) cout<<kq[i]<<'\n'; }

Compilation message (stderr)

pilot.cpp: In function 'int main()':
pilot.cpp:30:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |         freopen("THAYDOISO.inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
pilot.cpp:31:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |         freopen("THAYDOISO.out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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