Submission #1186765
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define int long long typedef long double ld; int k,n; ld w[1010],p[1010],s[1010]; //濃度dの食塩水が作れるか bool C(ld d){ ld sum=0; vector<ld> ei; for(int i=0;i<k;i++){ ei.push_back(s[i]-w[i]*d/100); } sort(ei.begin(),ei.end()); reverse(ei.begin(),ei.end()); for(int i=0;i<n;i++){ sum+=ei[i]; } if(sum>=0)return true; else return false; } signed main(){ cin>>k>>n; for(int i=0;i<k;i++){ cin>>w[i]>>p[i]; s[i]=w[i]*p[i]/100; } ld lb=0.0; ld ub=100.0; ld mid; for(int i=0;i<100;i++){ mid=(lb+ub)/2; if(C(mid))lb=mid; else ub=mid; } cout<<fixed<<setprecision(10)<<ub<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - 食塩水 |
User | albicilla |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 763 Byte |
Status | AC |
Exec Time | 9 ms |
Memory | 384 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 100 / 100 | ||||
Status |
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Set Name | Test Cases |
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Sample | s0.txt, s1.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, s0.txt, s1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 9 ms | 384 KB |
001.txt | AC | 2 ms | 256 KB |
002.txt | AC | 9 ms | 384 KB |
003.txt | AC | 2 ms | 256 KB |
004.txt | AC | 9 ms | 384 KB |
005.txt | AC | 8 ms | 384 KB |
006.txt | AC | 9 ms | 384 KB |
007.txt | AC | 7 ms | 384 KB |
008.txt | AC | 9 ms | 384 KB |
009.txt | AC | 2 ms | 256 KB |
010.txt | AC | 9 ms | 384 KB |
011.txt | AC | 4 ms | 256 KB |
012.txt | AC | 9 ms | 384 KB |
013.txt | AC | 4 ms | 256 KB |
014.txt | AC | 9 ms | 384 KB |
015.txt | AC | 7 ms | 384 KB |
016.txt | AC | 9 ms | 384 KB |
017.txt | AC | 5 ms | 256 KB |
018.txt | AC | 9 ms | 384 KB |
019.txt | AC | 6 ms | 384 KB |
s0.txt | AC | 1 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |