#include <iostream> #include <vector> using namespace std; typedef vector<int> vi; typedef vector<vi> vvi; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, k; cin >> n >> k; vvi a(n); for (int i = 0; i < n; i++) { a[i] = vi(i + 1); for (int& x : a[i]) cin >> x; } vvi c; c.push_back(vi(1, 1)); c.push_back(vi(2, 2)); c.resize(n); for (int i = 2; i < n; i++) { c[i] = vi(i + 1, 1); for (int j = 0; j <= i; j++) { if (j > 0) c[i][j] += c[i - 1][j - 1]; if (j < i) c[i][j] += c[i - 1][j]; if (j > 0 && j < i) c[i][j] -= c[i - 2][j - 1]; } } int z = a[0][0]; for (int i = 0; i < n; i++) { for (int j = 0; j <= i; j++) { if (c[i][j] <= k) z = min(z, a[i][j]); } } cout << z << "\n"; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #include <iostream> #include <vector> using namespace std; typedef vector<int> vi; typedef vector<vi> vvi; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, k; cin >> n >> k; vvi a(n); for (int i = 0; i < n; i++) { a[i] = vi(i + 1); for (int& x : a[i]) cin >> x; } vvi c; c.push_back(vi(1, 1)); c.push_back(vi(2, 2)); c.resize(n); for (int i = 2; i < n; i++) { c[i] = vi(i + 1, 1); for (int j = 0; j <= i; j++) { if (j > 0) c[i][j] += c[i - 1][j - 1]; if (j < i) c[i][j] += c[i - 1][j]; if (j > 0 && j < i) c[i][j] -= c[i - 2][j - 1]; } } int z = a[0][0]; for (int i = 0; i < n; i++) { for (int j = 0; j <= i; j++) { if (c[i][j] <= k) z = min(z, a[i][j]); } } cout << z << "\n"; return 0; } |