Submission #1000682
Source Code Expand
#include <cstdio> using namespace std; const int N = 31; int num[N]; int main() { int n; scanf("%d", &n); int xr = 0; for (int i = 0; i < n; i++) { int a; scanf("%d", &a); int pw = 0; xr ^= a; while (!(a & 1)) pw++, a >>= 1; num[pw]++; } int ans = 0; for (int i = N - 1; i >= 0; i--) { if ((xr >> i) & 1) { if (num[i]) { ans++; xr ^= (1 << (i + 1)) - 1; } else { puts("-1"); return 0; } } } printf("%d\n", ans); }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | Zlobober |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 667 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:15:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
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 | 13 ms | 128 KB |
003.txt | AC | 6 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 | 2 ms | 128 KB |
022.txt | AC | 2 ms | 128 KB |
023.txt | AC | 14 ms | 128 KB |
example0.txt | AC | 1 ms | 128 KB |
example1.txt | AC | 1 ms | 128 KB |