Submission #3514690
Source Code Expand
#include<bits/stdc++.h>
#define rint register int
#define rep(i,a,b) for (rint i=(a),_E=(b); i<=_E; ++i)
#define per(i,a,b) for (rint i=(a),_E=(b); i>=_E; --i)
#define REP(i,n) for (rint i=0,_E=(n); i<_E; ++i)
#define pb push_back
#define cmin(x,y) (y<x?x=y:0)
#define cmax(x,y) (y>x?x=y:0)
using namespace std;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef long long ll;
const int N = 100005;
int c[32], x, n, res, cnt, ans;
int main() {
scanf("%d", &n);
rep (i, 1, n) {
scanf("%d", &x);
res ^= x;
cnt = 0;
while (x && (x % 2 == 0))
x >>= 1, ++ cnt;
c[cnt] = 1;
}
per (i, 30, 0)
if (res >> i & 1) {
res ^= (1 << (i + 1)) - 1;
++ ans;
if (!c[i]) return puts("-1"), 0;
}
printf("%d\n", ans);
return 0;
}
Submission Info
Submission Time |
|
Task |
C - Cheating Nim |
User |
Cyanic |
Language |
C++14 (GCC 5.4.1) |
Score |
500 |
Code Size |
785 Byte |
Status |
AC |
Exec Time |
15 ms |
Memory |
256 KB |
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:18:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
./Main.cpp:20:18: 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 |
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 |
256 KB |
001.txt |
AC |
1 ms |
256 KB |
002.txt |
AC |
14 ms |
256 KB |
003.txt |
AC |
7 ms |
256 KB |
004.txt |
AC |
6 ms |
256 KB |
005.txt |
AC |
5 ms |
256 KB |
006.txt |
AC |
15 ms |
256 KB |
007.txt |
AC |
15 ms |
256 KB |
008.txt |
AC |
15 ms |
256 KB |
009.txt |
AC |
15 ms |
256 KB |
010.txt |
AC |
15 ms |
256 KB |
011.txt |
AC |
15 ms |
256 KB |
012.txt |
AC |
15 ms |
256 KB |
013.txt |
AC |
15 ms |
256 KB |
014.txt |
AC |
15 ms |
256 KB |
015.txt |
AC |
15 ms |
256 KB |
016.txt |
AC |
15 ms |
256 KB |
017.txt |
AC |
15 ms |
256 KB |
018.txt |
AC |
15 ms |
256 KB |
019.txt |
AC |
15 ms |
256 KB |
020.txt |
AC |
15 ms |
256 KB |
021.txt |
AC |
2 ms |
256 KB |
022.txt |
AC |
2 ms |
256 KB |
023.txt |
AC |
15 ms |
256 KB |
example0.txt |
AC |
1 ms |
256 KB |
example1.txt |
AC |
1 ms |
256 KB |