Submission #808474
Source Code Expand
import std.algorithm; import std.stdio; void main () { int n, k; while (readf (" %s %s", &n, &k) > 0) { auto a = new int [] [n]; foreach (i; 0..n - 1) { int u, v; readf (" %s %s", &u, &v); u--; v--; a[u] ~= v; a[v] ~= u; } int res = 0; int leaves; auto b = new bool [n]; void recur (int v, int p, int d) { if (d < 0) { leaves += 1; return; } b[v] = true; int c = 0; foreach (u; a[v]) { if (u != p) { c += 1; recur (u, v, d - 1); } } } foreach (v; 0..n) { b[] = false; int add = 0; b[v] = true; foreach (u; a[v]) { leaves = 0; recur (u, v, k / 2 - 1); add = max (add, leaves); } res = max (res, sum (b) + (k & 1) * add); } if (k == 1) { res = 2; } writeln (n - res); } }
Submission Info
Submission Time | |
---|---|
Task | C - Shorten Diameter |
User | Gassa |
Language | D (DMD64 v2.070.1) |
Score | 600 |
Code Size | 888 Byte |
Status | AC |
Exec Time | 99 ms |
Memory | 380 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 600 / 600 | ||||
Status |
|
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Set Name | Test Cases |
---|---|
Sample | sample-01.txt, sample-02.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, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 3 ms | 256 KB |
001.txt | AC | 3 ms | 256 KB |
002.txt | AC | 4 ms | 256 KB |
003.txt | AC | 4 ms | 256 KB |
004.txt | AC | 3 ms | 256 KB |
005.txt | AC | 4 ms | 256 KB |
006.txt | AC | 4 ms | 256 KB |
007.txt | AC | 4 ms | 256 KB |
008.txt | AC | 4 ms | 256 KB |
009.txt | AC | 23 ms | 380 KB |
010.txt | AC | 23 ms | 380 KB |
011.txt | AC | 23 ms | 380 KB |
012.txt | AC | 91 ms | 380 KB |
013.txt | AC | 23 ms | 380 KB |
014.txt | AC | 24 ms | 380 KB |
015.txt | AC | 52 ms | 380 KB |
016.txt | AC | 23 ms | 380 KB |
017.txt | AC | 51 ms | 380 KB |
018.txt | AC | 6 ms | 256 KB |
019.txt | AC | 4 ms | 256 KB |
020.txt | AC | 24 ms | 256 KB |
021.txt | AC | 61 ms | 380 KB |
022.txt | AC | 10 ms | 256 KB |
023.txt | AC | 5 ms | 256 KB |
024.txt | AC | 12 ms | 256 KB |
025.txt | AC | 4 ms | 256 KB |
026.txt | AC | 55 ms | 380 KB |
027.txt | AC | 22 ms | 380 KB |
028.txt | AC | 99 ms | 380 KB |
029.txt | AC | 48 ms | 380 KB |
030.txt | AC | 22 ms | 380 KB |
031.txt | AC | 50 ms | 380 KB |
sample-01.txt | AC | 4 ms | 256 KB |
sample-02.txt | AC | 4 ms | 256 KB |