Submission #1039167
Source Code Expand
#include <cstdio> #include <cassert> #define MAXN 100005 using namespace std; int n; bool can[32]; int main() { scanf("%d", &n); int nimVal = 0; for(int i = 1; i <= n; ++i) { int x; scanf("%d", &x); nimVal ^= x; int cnt = 0; while((x & 1) == 0) { ++cnt; x >>= 1; } can[cnt] = 1; } int sol = 0; for(int i = 29; i >= 0; --i) { if(nimVal & (1 << i)) { if(!can[i]) { return 0 * printf("-1\n"); } ++sol; nimVal ^= ((1 << (i + 1)) - 1); } } assert(nimVal == 0); printf("%d\n", sol); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | stefanzzz |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 747 Byte |
Status | AC |
Exec Time | 14 ms |
Memory | 128 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:11:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:17:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | example0.txt, example1.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, example0.txt, example1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 1 ms | 128 KB |
001.txt | AC | 1 ms | 128 KB |
002.txt | AC | 14 ms | 128 KB |
003.txt | AC | 7 ms | 128 KB |
004.txt | AC | 6 ms | 128 KB |
005.txt | AC | 5 ms | 128 KB |
006.txt | AC | 14 ms | 128 KB |
007.txt | AC | 14 ms | 128 KB |
008.txt | AC | 14 ms | 128 KB |
009.txt | AC | 14 ms | 128 KB |
010.txt | AC | 14 ms | 128 KB |
011.txt | AC | 14 ms | 128 KB |
012.txt | AC | 14 ms | 128 KB |
013.txt | AC | 14 ms | 128 KB |
014.txt | AC | 14 ms | 128 KB |
015.txt | AC | 14 ms | 128 KB |
016.txt | AC | 14 ms | 128 KB |
017.txt | AC | 14 ms | 128 KB |
018.txt | AC | 14 ms | 128 KB |
019.txt | AC | 14 ms | 128 KB |
020.txt | AC | 14 ms | 128 KB |
021.txt | AC | 3 ms | 128 KB |
022.txt | AC | 3 ms | 128 KB |
023.txt | AC | 14 ms | 128 KB |
example0.txt | AC | 1 ms | 128 KB |
example1.txt | AC | 1 ms | 128 KB |