Submission #3783586
Source Code Expand
// Last Change: 12/13/2018 20:11:37. #include <algorithm> #include <array> #include <cmath> #include <iostream> #include <list> #include <stack> #include <string> #include <vector> using namespace std; using ll = long long; void LoopUntilZeroInpput() { int hogegegege = 0; while (cin >> hogegegege && hogegegege != 0) { } } struct Mixture { int w; int p; }; struct Cal { ll ans; int index; bool operator<(const Cal &another) const { return ans < another.ans; } }; int main() { int N, K; cin >> N >> K; vector<Mixture> a(N + 1); vector<Cal> b(N); a[N].w = 2000000000; a[N].p = 200; for (int i = 0; i < N; i++) { cin >> a[i].w >> a[i].p; } for (int i = 0; i < N; i++) { b[i].index = i; b[i].ans = (a[i].w * a[i].p + a[N].w * a[N].p) / (a[i].w + a[N].w); } sort(b.begin(), b.end()); ll sumSolt = 0; ll sumW = 0; for (int i = 0; i < K; i++) { sumW += a[b[N - 1 - i].index].w; sumSolt += a[b[N - 1 - i].index].w * a[b[N - i - 1].index].p; } double ans = sumSolt / sumW; printf("%.9f", ans); }
Submission Info
Submission Time | |
---|---|
Task | D - 食塩水 |
User | Nagatuki |
Language | C++14 (Clang 3.8.0) |
Score | 0 |
Code Size | 1141 Byte |
Status | WA |
Exec Time | 3 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | WA | 3 ms | 256 KB |
001.txt | WA | 1 ms | 256 KB |
002.txt | WA | 3 ms | 256 KB |
003.txt | WA | 2 ms | 256 KB |
004.txt | WA | 3 ms | 256 KB |
005.txt | WA | 3 ms | 256 KB |
006.txt | WA | 3 ms | 256 KB |
007.txt | WA | 3 ms | 256 KB |
008.txt | WA | 3 ms | 256 KB |
009.txt | WA | 1 ms | 256 KB |
010.txt | WA | 3 ms | 256 KB |
011.txt | WA | 2 ms | 256 KB |
012.txt | WA | 3 ms | 256 KB |
013.txt | WA | 2 ms | 256 KB |
014.txt | WA | 3 ms | 256 KB |
015.txt | WA | 3 ms | 256 KB |
016.txt | WA | 3 ms | 256 KB |
017.txt | WA | 2 ms | 256 KB |
018.txt | WA | 3 ms | 256 KB |
019.txt | WA | 2 ms | 256 KB |
s0.txt | WA | 1 ms | 256 KB |
s1.txt | WA | 1 ms | 256 KB |