#include <stdio.h> #include <algorithm> #include <optional> #include <set> #include <vector> std::optional<std::vector<int>> check(const std::vector<int>& data, const std::vector<int>& min, const std::vector<int>& max, const int n, const int k, const int a, const int b) { if (4 <= k) { return {{a, b, b + 1}}; } else { const auto aOk = a == 0 || data[b] <= min[a - 1]; const auto bOk = b == n - 1 || max[b + 1] <= data[a]; if (3 <= k && aOk) { return {{b, b + 1}}; } else if (3 <= k && bOk) { return {{a, b}}; } else if (2 <= k && max[b] <= min[a]) { return {{b}}; } } return std::nullopt; } std::optional<std::vector<int>> resolve(const std::vector<int>& data, const std::vector<int>& min, const std::vector<int>& max, const int n, const int k) { for (int i = 0; i < data.size() - 1; ++i) { if (data[i + 1] <= data[i]) { const auto solution = check(data, min, max, n, k, i, i + 1); if (solution) { return solution; } } } return std::nullopt; } void calculateMinMax(const std::vector<int>& data, std::vector<int>& min, std::vector<int>& max) { int _min = 1000000001; int _max = -1000000001; for (const auto& value : data) { _min = std::min(_min, value); min.push_back(_min); } for (auto it = data.rbegin(); it != data.rend(); ++it) { _max = std::max(_max, *it); max.push_back(_max); } std::reverse(max.begin(), max.end()); } int main() { int n, k, tmp; std::vector<int> data, min, max; scanf("%d %d\n", &n, &k); data.reserve(n); min.reserve(n); max.reserve(n); for (int i = 0; i < n; ++i) { scanf("%d", &tmp); data.push_back(tmp); } calculateMinMax(data, min, max); const auto solution = resolve(data, min, max, n, k); if (solution) { int toPrint = k - solution->size() - 1; printf("TAK\n"); for (int i = 1; i < solution->front(); ++i) { if (0 < toPrint--) printf("%d ", i); } for (const auto& value : solution.value()) { printf("%d ", value); } for (int i = solution->back() + 1; i < n; ++i) { if (0 < toPrint--) printf("%d ", i); } printf("\n"); } else { printf("NIE\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 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | #include <stdio.h> #include <algorithm> #include <optional> #include <set> #include <vector> std::optional<std::vector<int>> check(const std::vector<int>& data, const std::vector<int>& min, const std::vector<int>& max, const int n, const int k, const int a, const int b) { if (4 <= k) { return {{a, b, b + 1}}; } else { const auto aOk = a == 0 || data[b] <= min[a - 1]; const auto bOk = b == n - 1 || max[b + 1] <= data[a]; if (3 <= k && aOk) { return {{b, b + 1}}; } else if (3 <= k && bOk) { return {{a, b}}; } else if (2 <= k && max[b] <= min[a]) { return {{b}}; } } return std::nullopt; } std::optional<std::vector<int>> resolve(const std::vector<int>& data, const std::vector<int>& min, const std::vector<int>& max, const int n, const int k) { for (int i = 0; i < data.size() - 1; ++i) { if (data[i + 1] <= data[i]) { const auto solution = check(data, min, max, n, k, i, i + 1); if (solution) { return solution; } } } return std::nullopt; } void calculateMinMax(const std::vector<int>& data, std::vector<int>& min, std::vector<int>& max) { int _min = 1000000001; int _max = -1000000001; for (const auto& value : data) { _min = std::min(_min, value); min.push_back(_min); } for (auto it = data.rbegin(); it != data.rend(); ++it) { _max = std::max(_max, *it); max.push_back(_max); } std::reverse(max.begin(), max.end()); } int main() { int n, k, tmp; std::vector<int> data, min, max; scanf("%d %d\n", &n, &k); data.reserve(n); min.reserve(n); max.reserve(n); for (int i = 0; i < n; ++i) { scanf("%d", &tmp); data.push_back(tmp); } calculateMinMax(data, min, max); const auto solution = resolve(data, min, max, n, k); if (solution) { int toPrint = k - solution->size() - 1; printf("TAK\n"); for (int i = 1; i < solution->front(); ++i) { if (0 < toPrint--) printf("%d ", i); } for (const auto& value : solution.value()) { printf("%d ", value); } for (int i = solution->back() + 1; i < n; ++i) { if (0 < toPrint--) printf("%d ", i); } printf("\n"); } else { printf("NIE\n"); } return 0; } |