#include <algorithm> #include <cstdint> #include <ios> #include <iostream> #include <iterator> #include <limits> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <vector> template <typename T> void print_value(const T &v); template <typename T> void debug(const T &v, const std::string &s) { std::cerr << s << ": '"; print_value(v); std::cerr << "'\n"; } template <> void print_value(const std::vector<int64_t> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <> void print_value(const std::vector<int> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <> void print_value(const std::unordered_set<int32_t> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <typename T> void print_value(const T &v) { std::cerr << v; } void prelude() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); } struct Dyn { Dyn() { for (int i = 0; i < 3; ++i) { min_previous[i] = std::numeric_limits<int64_t>::min(); min_current[i] = std::numeric_limits<int64_t>::max(); for (int j = 0; j < 3; ++j) { history[i][j] = std::numeric_limits<int>::min(); } } } int64_t min_previous[3]; int64_t min_current[3]; int history[3][2]; }; void print_split_list(int k, std::vector<int> forced_split) { std::vector<int> result; //debug(0, "print"); if (forced_split.size() < k - 1) { std::unordered_set<int> all(forced_split.begin(), forced_split.end()); //debug(1, "print"); for (int i = 1; all.size() < k - 1; ++i) { if (all.find(i) == all.end()) { all.insert(i); } } //debug(2, "print"); result = {all.begin(), all.end()}; } else { result = {forced_split.begin(), forced_split.end()}; } //debug(3, "print"); //debug(result, "print result"); sort(result.begin(), result.end()); //debug(3.5, "print"); for (int i = 0; i < k - 2; ++i) { std::cout << result[i] << " "; } //debug(4, "print"); std::cout << result[k - 2] << "\n"; } int main() { prelude(); //debug("foo", "foo"); int n = 0, k = 0; std::cin >> n >> k; std::vector<int64_t> income(n); for (int i = 0; i < n; ++i) { std::cin >> income[i]; } if (k >= 4) { //debug(0, "big k"); // - If strictly increasing, division is impossible. // - Otherwise, we can isolate two elements that make it not strictly // increasing (and we need two more intervals for prefix and suffix). int i; for (i = 0; i < n - 1; ++i) { if (income[i] >= income[i + 1]) { break; } } //debug(1, "big k"); if (i == n - 1) { std::cout << "NIE\n"; } else { //debug(2, "big k"); std::vector<int> result; if (i > 0) result.push_back(i); result.push_back(i + 1); if (i + 2 < n) result.push_back(i + 2); //debug(3, "big k"); std::cout << "TAK\n"; print_split_list(k, result); } } else if (k == 3) { // If there is a minimum after first element, or maximum before last, we can // isolate it. Otherwise, it's not possible. auto first = income[0]; auto last = income[n - 1]; int64_t min = std::numeric_limits<int64_t>::max(); int isolated = -1; int64_t max = -1; for (int i = 0; i < n; ++i) { if (i > 0 && income[i] <= first && min > income[i]) { min = income[i]; isolated = i; } if (i < n - 1 && income[i] >= last && max < income[i]) { max = income[i]; isolated = i; } } if (isolated != -1) { std::cout << "TAK\n"; std::vector<int> result; if (isolated > 0) result.push_back(isolated); if (isolated + 1 < n) result.push_back(isolated + 1); print_split_list(k, std::move(result)); } else { std::cout << "NIE\n"; } } else { // k == 2 std::vector<int64_t> left_mins(n); std::vector<int64_t> right_maxes(n); left_mins[0] = income[0]; right_maxes[n-1] = income[n-1]; for (int i = 1; i < n - 1; ++i) { left_mins[i] = std::min(left_mins[i - 1], income[i]); } for (int i = n - 2; i > 0; --i) { right_maxes[i] = std::max(right_maxes[i + 1], income[i]); } for (int i = 0; i < n - 1; ++i) { if (right_maxes[i + 1] <= left_mins[i]) { std::cout << "TAK\n"; std::cout << i + 1 << "\n"; return 0; } } std::cout << "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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 | #include <algorithm> #include <cstdint> #include <ios> #include <iostream> #include <iterator> #include <limits> #include <string> #include <tuple> #include <unordered_map> #include <unordered_set> #include <vector> template <typename T> void print_value(const T &v); template <typename T> void debug(const T &v, const std::string &s) { std::cerr << s << ": '"; print_value(v); std::cerr << "'\n"; } template <> void print_value(const std::vector<int64_t> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <> void print_value(const std::vector<int> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <> void print_value(const std::unordered_set<int32_t> &v) { for (const auto x : v) { std::cerr << x << " "; } } template <typename T> void print_value(const T &v) { std::cerr << v; } void prelude() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); } struct Dyn { Dyn() { for (int i = 0; i < 3; ++i) { min_previous[i] = std::numeric_limits<int64_t>::min(); min_current[i] = std::numeric_limits<int64_t>::max(); for (int j = 0; j < 3; ++j) { history[i][j] = std::numeric_limits<int>::min(); } } } int64_t min_previous[3]; int64_t min_current[3]; int history[3][2]; }; void print_split_list(int k, std::vector<int> forced_split) { std::vector<int> result; //debug(0, "print"); if (forced_split.size() < k - 1) { std::unordered_set<int> all(forced_split.begin(), forced_split.end()); //debug(1, "print"); for (int i = 1; all.size() < k - 1; ++i) { if (all.find(i) == all.end()) { all.insert(i); } } //debug(2, "print"); result = {all.begin(), all.end()}; } else { result = {forced_split.begin(), forced_split.end()}; } //debug(3, "print"); //debug(result, "print result"); sort(result.begin(), result.end()); //debug(3.5, "print"); for (int i = 0; i < k - 2; ++i) { std::cout << result[i] << " "; } //debug(4, "print"); std::cout << result[k - 2] << "\n"; } int main() { prelude(); //debug("foo", "foo"); int n = 0, k = 0; std::cin >> n >> k; std::vector<int64_t> income(n); for (int i = 0; i < n; ++i) { std::cin >> income[i]; } if (k >= 4) { //debug(0, "big k"); // - If strictly increasing, division is impossible. // - Otherwise, we can isolate two elements that make it not strictly // increasing (and we need two more intervals for prefix and suffix). int i; for (i = 0; i < n - 1; ++i) { if (income[i] >= income[i + 1]) { break; } } //debug(1, "big k"); if (i == n - 1) { std::cout << "NIE\n"; } else { //debug(2, "big k"); std::vector<int> result; if (i > 0) result.push_back(i); result.push_back(i + 1); if (i + 2 < n) result.push_back(i + 2); //debug(3, "big k"); std::cout << "TAK\n"; print_split_list(k, result); } } else if (k == 3) { // If there is a minimum after first element, or maximum before last, we can // isolate it. Otherwise, it's not possible. auto first = income[0]; auto last = income[n - 1]; int64_t min = std::numeric_limits<int64_t>::max(); int isolated = -1; int64_t max = -1; for (int i = 0; i < n; ++i) { if (i > 0 && income[i] <= first && min > income[i]) { min = income[i]; isolated = i; } if (i < n - 1 && income[i] >= last && max < income[i]) { max = income[i]; isolated = i; } } if (isolated != -1) { std::cout << "TAK\n"; std::vector<int> result; if (isolated > 0) result.push_back(isolated); if (isolated + 1 < n) result.push_back(isolated + 1); print_split_list(k, std::move(result)); } else { std::cout << "NIE\n"; } } else { // k == 2 std::vector<int64_t> left_mins(n); std::vector<int64_t> right_maxes(n); left_mins[0] = income[0]; right_maxes[n-1] = income[n-1]; for (int i = 1; i < n - 1; ++i) { left_mins[i] = std::min(left_mins[i - 1], income[i]); } for (int i = n - 2; i > 0; --i) { right_maxes[i] = std::max(right_maxes[i + 1], income[i]); } for (int i = 0; i < n - 1; ++i) { if (right_maxes[i + 1] <= left_mins[i]) { std::cout << "TAK\n"; std::cout << i + 1 << "\n"; return 0; } } std::cout << "NIE\n"; } return 0; } |