Submission #1444205
Source Code Expand
#include <bits/stdc++.h> using namespace std; // why am I so weak int n, p; int a[55]; int dp[55][55]; int comb(int n, int k) { if (k == 0 || k == n) return 1; return dp[n][k] = comb(n - 1, k) + comb(n - 1, k - 1); } int main() { cin >> n >> p; int odd = 0, even = 0; for (int i = 0; i < n; i++) { scanf("%d", &a[i]); if (a[i] & 1) odd++; else even++; } long long res = 0ll; if (p == 0) { for (int i = 0; i <= odd; i += 2) { res += (1ll << even) * comb(odd, i); } } else { for (int i = 1; i <= odd; i += 2) { res += (1ll << even) * comb(odd, i); } } printf("%lld\n", res); return 0; }
Submission Info
Submission Time | |
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Task | A - Biscuits |
User | IanWong |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 668 Byte |
Status | AC |
Exec Time | 157 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:20:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^
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 | 157 ms | 256 KB |
in2.txt | AC | 79 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 | 157 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 | 40 ms | 256 KB |