Submission #2708213
Source Code Expand
check[30], c, n, a; int main() { while (1) { c = getchar_unlocked(); if ('0' <= c && c <= '9') n = n * 10 + c - '0'; else break; } int xor_sum = 0; for (int i = 0; i < n; i++) { a = 0; while (1) { c = getchar_unlocked(); if ('0' <= c && c <= '9') a = a * 10 + c - '0'; else break; } xor_sum ^= a; a = a ^ (a - 1); check[__builtin_popcount(a) - 1] = 1; } int ans = 0; for (int bit = 29; bit >= 0; bit--) { if (check[bit] && ((1 << bit) & xor_sum)) { int x = (1 << (bit + 1)) - 1; xor_sum ^= x; ans += 1; } } if (xor_sum != 0) { printf("-1\n"); } else { printf("%d\n", ans); } }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | kenkoooo |
Language | C (GCC 5.4.1) |
Score | 500 |
Code Size | 758 Byte |
Status | AC |
Exec Time | 4 ms |
Memory | 128 KB |
Compile Error
./Main.c:1:1: warning: data definition has no type or storage class check[30], c, n, a; ^ ./Main.c:1:1: warning: type defaults to ‘int’ in declaration of ‘check’ [-Wimplicit-int] ./Main.c:1:12: warning: type defaults to ‘int’ in declaration of ‘c’ [-Wimplicit-int] check[30], c, n, a; ^ ./Main.c:1:15: warning: type defaults to ‘int’ in declaration of ‘n’ [-Wimplicit-int] check[30], c, n, a; ^ ./Main.c:1:18: warning: type defaults to ‘int’ in declaration of ‘a’ [-Wimplicit-int] check[30], c, n, a; ^ ./Main.c: In function ‘main’: ./Main.c:4:9: warning: implicit declaration of function ‘getchar_unlocked’ [-Wimplicit-function-declaration] c = getchar_unlocked(); ^ ./Main.c:37:5: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration] printf("-1\n"); ^ ./Main.c:37:5: warning: incompatible implicit declaration of built-in function ‘printf’ ./Main.c:37:5: note: include ‘<stdio.h>’ or provide a declaration of ‘...
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 | 4 ms | 128 KB |
003.txt | AC | 1 ms | 128 KB |
004.txt | AC | 2 ms | 128 KB |
005.txt | AC | 2 ms | 128 KB |
006.txt | AC | 4 ms | 128 KB |
007.txt | AC | 4 ms | 128 KB |
008.txt | AC | 4 ms | 128 KB |
009.txt | AC | 4 ms | 128 KB |
010.txt | AC | 4 ms | 128 KB |
011.txt | AC | 4 ms | 128 KB |
012.txt | AC | 4 ms | 128 KB |
013.txt | AC | 4 ms | 128 KB |
014.txt | AC | 4 ms | 128 KB |
015.txt | AC | 4 ms | 128 KB |
016.txt | AC | 4 ms | 128 KB |
017.txt | AC | 4 ms | 128 KB |
018.txt | AC | 4 ms | 128 KB |
019.txt | AC | 4 ms | 128 KB |
020.txt | AC | 4 ms | 128 KB |
021.txt | AC | 1 ms | 128 KB |
022.txt | AC | 1 ms | 128 KB |
023.txt | AC | 4 ms | 128 KB |
example0.txt | AC | 0 ms | 128 KB |
example1.txt | AC | 0 ms | 128 KB |