# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
199774 | SamAnd | Popcount (COCI19_popcount) | C++17 | 19 ms | 384 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
int n, k;
vector<int> gum(vector<int> a, vector<int> b)
{
vector<int> ans;
reverse(a.begin(), a.end());
reverse(b.begin(), b.end());
while (a.size() < b.size())
a.push_back(0);
while (b.size() < a.size())
b.push_back(0);
int m = 0;
for (int i = 0; i < a.size(); ++i)
{
ans.push_back((a[i] + b[i] + m) % 10);
m = (a[i] + b[i] + m) / 10;
}
ans.push_back(m);
while (ans.back() == 0)
ans.pop_back();
reverse(ans.begin(), ans.end());
return ans;
}
void tp(vector<int> v)
{
if (v.empty())
v.push_back(0);
for (int i = 0; i < v.size(); ++i)
cout << v[i];
}
void solv4()
{
k = min(k, 10);
cout << k << endl;
for (int i = 0; i < k; ++i)
{
vector<int> v1, v2;
vector<int> ast = {1};
for (int j = 0; j < n; ++j)
{
if ((j & (1 << i)) == 0)
{
v1 = gum(v1, ast);
}
else
{
v2 = gum(v2, ast);
}
ast = gum(ast, ast);
}
cout << "A=((";
tp(v1);
cout << "&A)+((";
tp(v2);
cout << "&A)>>" << (i + 1) << "))\n";
}
}
int main()
{
cin >> n >> k;
if (n == 1)
{
cout << "0\n";
return 0;
}
solv4();
return 0;
}
Compilation message (stderr)
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