Submission #1084704
Source Code Expand
#include <bits/stdc++.h> using namespace std; typedef long long lint; typedef pair<int, int> pi; const int mod = 1e9 + 7; int cnt[30]; int main(){ int n; scanf("%d",&n); int xs = 0; for(int i=0; i<n; i++){ int x; scanf("%d",&x); xs ^= x; x ^= (x - 1); for(int j=0; j<=30; j++){ if(x + 1 == (1 << j)){ cnt[j]++; break; } } } int ans = 0; for(int i=30; i; i--){ if((xs >> i) % 2 != (xs >> (i - 1)) % 2){ if(!cnt[i]){ puts("-1"); return 0; } ans++; } } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | koosaga |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 565 Byte |
Status | AC |
Exec Time | 16 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:10:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:14:17: 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 |
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|
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 | 3 ms | 256 KB |
001.txt | AC | 3 ms | 256 KB |
002.txt | AC | 15 ms | 256 KB |
003.txt | AC | 8 ms | 256 KB |
004.txt | AC | 8 ms | 256 KB |
005.txt | AC | 6 ms | 256 KB |
006.txt | AC | 16 ms | 256 KB |
007.txt | AC | 16 ms | 256 KB |
008.txt | AC | 16 ms | 256 KB |
009.txt | AC | 16 ms | 256 KB |
010.txt | AC | 16 ms | 256 KB |
011.txt | AC | 16 ms | 256 KB |
012.txt | AC | 16 ms | 256 KB |
013.txt | AC | 16 ms | 256 KB |
014.txt | AC | 16 ms | 256 KB |
015.txt | AC | 16 ms | 256 KB |
016.txt | AC | 16 ms | 256 KB |
017.txt | AC | 16 ms | 256 KB |
018.txt | AC | 16 ms | 256 KB |
019.txt | AC | 16 ms | 256 KB |
020.txt | AC | 16 ms | 256 KB |
021.txt | AC | 4 ms | 256 KB |
022.txt | AC | 4 ms | 256 KB |
023.txt | AC | 16 ms | 256 KB |
example0.txt | AC | 3 ms | 256 KB |
example1.txt | AC | 3 ms | 256 KB |