Submission #3049301
Source Code Expand
#include <cstdio> #include <cstdlib> #include <cstring> #include <algorithm> #include <math.h> using namespace std; const int MAXN = 1e5 + 10; const int MAXM = 2e5 + 10; int N; int cnt = 1, Head[MAXN], Next[MAXM], To[MAXM]; inline void add_edge(int x, int y) { Next[++cnt] = Head[x], To[cnt] = y, Head[x] = cnt; } inline void insert_edge(int x, int y) { add_edge(x, y), add_edge(y, x); } inline int Dfs(int x, int fa = 0) { register int i; int res = 0; for(i = Head[x]; i; i = Next[i]) if(To[i] != fa) res ^= Dfs(To[i], x) + 1; return res; } int main() { register int i; int x, y; scanf("%d", &N); for(i = 1; i < N; ++i) scanf("%d%d", &x, &y), insert_edge(x, y); puts(Dfs(1, 0) ? "Alice" : "Bob"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Game on Tree |
User | david7ch |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 769 Byte |
Status | AC |
Exec Time | 24 ms |
Memory | 4224 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:31:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ ./Main.cpp:34:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] insert_edge(x, y); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1100 / 1100 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt, sample4.txt |
All | sample1.txt, sample2.txt, sample3.txt, sample4.txt, a1.txt, a10.txt, a11.txt, a12.txt, a13.txt, a14.txt, a15.txt, a16.txt, a17.txt, a18.txt, a19.txt, a2.txt, a20.txt, a21.txt, a22.txt, a23.txt, a24.txt, a25.txt, a26.txt, a27.txt, a28.txt, a29.txt, a3.txt, a30.txt, a4.txt, a5.txt, a6.txt, a7.txt, a8.txt, a9.txt, b1.txt, b2.txt, b3.txt, b4.txt, b5.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
a1.txt | AC | 1 ms | 128 KB |
a10.txt | AC | 2 ms | 384 KB |
a11.txt | AC | 2 ms | 384 KB |
a12.txt | AC | 2 ms | 384 KB |
a13.txt | AC | 21 ms | 2176 KB |
a14.txt | AC | 21 ms | 2176 KB |
a15.txt | AC | 17 ms | 1792 KB |
a16.txt | AC | 22 ms | 2176 KB |
a17.txt | AC | 22 ms | 2176 KB |
a18.txt | AC | 21 ms | 2176 KB |
a19.txt | AC | 22 ms | 2560 KB |
a2.txt | AC | 1 ms | 256 KB |
a20.txt | AC | 23 ms | 2688 KB |
a21.txt | AC | 18 ms | 2176 KB |
a22.txt | AC | 21 ms | 2176 KB |
a23.txt | AC | 21 ms | 2176 KB |
a24.txt | AC | 17 ms | 1792 KB |
a25.txt | AC | 22 ms | 2176 KB |
a26.txt | AC | 22 ms | 2176 KB |
a27.txt | AC | 22 ms | 2176 KB |
a28.txt | AC | 22 ms | 2560 KB |
a29.txt | AC | 23 ms | 2688 KB |
a3.txt | AC | 1 ms | 256 KB |
a30.txt | AC | 18 ms | 2176 KB |
a4.txt | AC | 2 ms | 384 KB |
a5.txt | AC | 2 ms | 384 KB |
a6.txt | AC | 2 ms | 384 KB |
a7.txt | AC | 2 ms | 384 KB |
a8.txt | AC | 2 ms | 384 KB |
a9.txt | AC | 2 ms | 384 KB |
b1.txt | AC | 24 ms | 4224 KB |
b2.txt | AC | 23 ms | 3200 KB |
b3.txt | AC | 24 ms | 4224 KB |
b4.txt | AC | 23 ms | 3200 KB |
b5.txt | AC | 23 ms | 3200 KB |
sample1.txt | AC | 1 ms | 128 KB |
sample2.txt | AC | 1 ms | 128 KB |
sample3.txt | AC | 1 ms | 128 KB |
sample4.txt | AC | 1 ms | 128 KB |