Submission #1001388
Source Code Expand
#include <bits/stdc++.h> using namespace std; int n, a[100009], b[100009]; int main() { scanf("%d", &n); for(int i = 0; i < n; i++) scanf("%d", &a[i]); bool flag = true; for(int i = 29; i >= 0 && flag; i--) { int s = 0; for(int j = 0; j < n; j++) s ^= (a[j] >> i) & 1; if(s == 1) { bool ok = false; for(int j = 0; j < n && !ok; j++) { if(!b[j] && (a[j] >> i << i) == a[j]) { a[j]--; b[j] = 1; ok = true; } } if(!ok) flag = false; } } if(!flag) printf("-1\n"); else { int ret = 0; for(int i = 0; i < n; i++) ret += b[i]; printf("%d\n", ret); } }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | square1001 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 629 Byte |
Status | WA |
Exec Time | 18 ms |
Memory | 640 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:5:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:6:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 0; i < n; i++) scanf("%d", &a[i]); ^
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 | AC | 3 ms | 256 KB |
001.txt | AC | 3 ms | 256 KB |
002.txt | AC | 18 ms | 640 KB |
003.txt | AC | 10 ms | 512 KB |
004.txt | AC | 8 ms | 384 KB |
005.txt | AC | 6 ms | 384 KB |
006.txt | AC | 18 ms | 640 KB |
007.txt | AC | 18 ms | 640 KB |
008.txt | AC | 18 ms | 640 KB |
009.txt | AC | 18 ms | 640 KB |
010.txt | AC | 17 ms | 640 KB |
011.txt | AC | 18 ms | 640 KB |
012.txt | AC | 17 ms | 640 KB |
013.txt | AC | 17 ms | 640 KB |
014.txt | AC | 17 ms | 640 KB |
015.txt | AC | 18 ms | 640 KB |
016.txt | WA | 17 ms | 640 KB |
017.txt | WA | 18 ms | 640 KB |
018.txt | AC | 17 ms | 640 KB |
019.txt | AC | 18 ms | 640 KB |
020.txt | WA | 18 ms | 640 KB |
021.txt | AC | 4 ms | 256 KB |
022.txt | WA | 4 ms | 256 KB |
023.txt | AC | 16 ms | 640 KB |
example0.txt | AC | 2 ms | 256 KB |
example1.txt | AC | 3 ms | 256 KB |