Submission #1409290
Source Code Expand
#include <iostream> #include <vector> using namespace std; typedef long long LL; vector<LL> factor(int n) { vector<LL> ret(n+1, 1); for (int i = 1; i <= n; i++) { ret[i] = (ret[i-1]* (n-i+1)) / i; } return ret; } int main() { // freopen("test.txt", "r", stdin); int n, p, tmp; scanf("%d%d", &n, &p); int one = 0; int two = 0; for (int i = 0; i < n; i++) { scanf("%d", &tmp); if (tmp & 1) one++; else two++; } vector<LL> factor_one = factor(one); vector<LL> factor_two = factor(two); LL ret1 = 0; LL ret2 = 0; for (int i = 0; i <= two; i++) { ret2 += factor_two[i]; } if (p == 0) { for (int i = 0; i <= one; i+=2) { ret1 += factor_one[i]; } cout << ret1*ret2 << endl; } else { for (int i = 1; i <= one; i+=2) { ret1 += factor_one[i]; } cout << ret1*ret2 << endl; } return 0; }
Submission Info
Submission Time | |
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Task | A - Biscuits |
User | txingml |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 1028 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:18:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &p); ^ ./Main.cpp:22:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &tmp); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt, sample4.txt |
All | sample1.txt, sample2.txt, sample3.txt, sample4.txt, in1.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 1 ms | 256 KB |
in3.txt | AC | 1 ms | 256 KB |
in4.txt | AC | 1 ms | 256 KB |
in5.txt | AC | 1 ms | 256 KB |
in6.txt | AC | 1 ms | 256 KB |
in7.txt | AC | 1 ms | 256 KB |
in8.txt | AC | 1 ms | 256 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |
sample4.txt | AC | 1 ms | 256 KB |