제출 #716669

#제출 시각아이디문제언어결과실행 시간메모리
716669nihaddhuseynliDetecting Molecules (IOI16_molecules)C++14
9 / 100
1 ms212 KiB
#include "molecules.h" #include <bits/stdc++.h> using namespace std; typedef long long int ll; struct segtree{ int size; vector<ll> values; void build(vector<int> &a,int x,int lx,int rx){ if(rx-lx==1){ if(lx<(int)a.size()){ values[x]=a[lx]; } return; } int m=(lx+rx)/2; build(a,2*x+1,lx,m); build(a,2*x+2,m,rx); values[x]=min(values[2*x+1],values[2*x+2]); } void build(vector<int> &a){ build(a,0,0,size); } void init(int n){ size=1; while(size<n){ size*=2; } values.assign(2*size,0LL); } ll calc(int l,int r,int x,int lx,int rx){ if(lx>=r || rx<=l){ return INT_MAX; } if(lx>=l && rx<=r){ return values[x]; } ll s1,s2; int m=(lx+rx)/2; s1=calc(l,r,2*x+1,lx,m); s2=calc(l,r,2*x+2,m,rx); return min(s1,s2); } ll calc(int l,int r){ return calc(l,r,0,0,size); } }; struct segtree1{ int size; vector<ll> values; void build(vector<int> &a,int x,int lx,int rx){ if(rx-lx==1){ if(lx<(int)a.size()){ values[x]=a[lx]; } return; } int m=(lx+rx)/2; build(a,2*x+1,lx,m); build(a,2*x+2,m,rx); values[x]=max(values[2*x+1],values[2*x+2]); } void build(vector<int> &a){ build(a,0,0,size); } void init(int n){ size=1; while(size<n){ size*=2; } values.assign(2*size,INT_MIN); } ll calc(int l,int r,int x,int lx,int rx){ if(lx>=r || rx<=l){ return INT_MIN; } if(lx>=l && rx<=r){ return values[x]; } ll s1,s2; int m=(lx+rx)/2; s1=calc(l,r,2*x+1,lx,m); s2=calc(l,r,2*x+2,m,rx); return max(s1,s2); } ll calc(int l,int r){ return calc(l,r,0,0,size); } }; vector<int> find_subset(int l, int u, std::vector<int> w) { vector<int> ans; ll n=w.size(); ll a[n+5]; segtree st; vector<pair<ll,ll>> v; for(int i =0;i<n;i++) { v.push_back({w[i],i}); } sort(v.begin(),v.end()); int j =0; ll sum=0; for(int i =0;i<n;i++) { sum+=v[i].first; while(sum>u) { sum-=v[j++].first; } if(sum>=l) { for(int k =j;k<=i;k++) { ans.push_back(k); } break; } } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:92:8: warning: unused variable 'a' [-Wunused-variable]
   92 |     ll a[n+5];
      |        ^
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