Submission #2165622
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define INF_LL (int64)1e18 #define INF (int32)1e9 #define REP(i, n) for(int i = 0;i < (n);i++) #define FOR(i, a, b) for(int i = (a);i < (b);i++) #define all(x) x.begin(),x.end() #define fs first #define sc second using int32 = int_fast32_t; using uint32 = uint_fast32_t; using int64 = int_fast64_t; using uint64 = uint_fast64_t; using PII = pair<int32, int32>; using PLL = pair<int64, int64>; const double eps = 1e-10; template<typename A, typename B>inline void chmin(A &a, B b){if(a > b) a = b;} template<typename A, typename B>inline void chmax(A &a, B b){if(a < b) a = b;} const int64 mod = 1e9+7; int main(void){ uint32 N; vector<uint32> a; cin >> N; a.resize(N); REP(i, N) cin >> a[i]; int32 cnt[32] = {}; uint32 rest = 0; REP(i, N){ rest ^= a[i]; if(a[i] != 0) cnt[__builtin_ffs(a[i])]++; } int32 res = 0; REP(i, N){ int32 bit = 32-__builtin_clz(rest); if(cnt[bit]){ res++; rest ^= (1 << bit)-1; }else{ cout << -1 << endl; return 0; } } cout << res << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | maze1230 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1108 Byte |
Status | RE |
Exec Time | 141 ms |
Memory | 1024 KB |
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | WA | 2 ms | 384 KB |
001.txt | AC | 1 ms | 256 KB |
002.txt | WA | 43 ms | 1024 KB |
003.txt | WA | 14 ms | 768 KB |
004.txt | AC | 15 ms | 640 KB |
005.txt | AC | 13 ms | 512 KB |
006.txt | WA | 40 ms | 1024 KB |
007.txt | WA | 40 ms | 1024 KB |
008.txt | RE | 136 ms | 1024 KB |
009.txt | RE | 136 ms | 1024 KB |
010.txt | RE | 139 ms | 1024 KB |
011.txt | RE | 138 ms | 1024 KB |
012.txt | WA | 40 ms | 1024 KB |
013.txt | RE | 141 ms | 1024 KB |
014.txt | RE | 135 ms | 1024 KB |
015.txt | WA | 40 ms | 1024 KB |
016.txt | AC | 40 ms | 1024 KB |
017.txt | AC | 40 ms | 1024 KB |
018.txt | RE | 136 ms | 1024 KB |
019.txt | WA | 40 ms | 1024 KB |
020.txt | AC | 40 ms | 1024 KB |
021.txt | AC | 5 ms | 256 KB |
022.txt | AC | 5 ms | 384 KB |
023.txt | AC | 40 ms | 1024 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |