#include <iostream> #include <vector> #include <algorithm> #include <climits> int main() { std::ios_base::sync_with_stdio(0); std::cin.tie(0); std::cout.tie(0); int n, k; std::cin >> n >> k; std::vector<int> input(n); for (int i = 0; i < n; ++i) { std::cin >> input[i]; } std::vector<int> prefmin(n); std::vector<int> sufmax(n); prefmin[0] = input[0]; for (int i = 1; i < n; ++i) { prefmin[i] = std::min(prefmin[i-1], input[i]); } sufmax[n-1] = input[n-1]; for (int i = n-2; i >= 0; --i) { sufmax[i] = std::max(sufmax[i+1], input[i]); } if (k == 2) { for (int i = 0; i < n-1; ++i) { if (prefmin[i] >= sufmax[i+1]) { std::cout << "TAK\n" << (i +1) << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k >= 4) { if (input[0] >= input[1]) { std::cout << "TAK\n" << "1 2"; int cnt = 2; for (int i = 2; cnt < k-1 && i < n; ++i) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } if (input[n-2] >= input[n-1]) { std::cout << "TAK\n"; int cnt = 2; for (int i = 0; cnt < k-1 && i < n-3; ++i) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (n-3 +1) << ' ' << (n-2 +1) << '\n'; return 0; } for (int i = 2; i < n-1; ++i) { if (input[i-1] >= input[i]) { std::cout << "TAK\n"; int cnt = 3; for (int j = 0; cnt < k-1 && j < i-2; ++j) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (i-2 +1) << ' ' << (i-1 +1) << ' ' << (i +1); for (int j = i+1; cnt < k-1 && j < n; ++j) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k == 3) { int maxval = -1; for (int i = 0; i < n; ++i) { if (input[i] >= maxval) { maxval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == maxval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } int minval = INT_MAX; for (int i = 0; i < n; ++i) { if (input[i] <= minval) { minval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == minval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } // That means the only minimum and maximum elements in the array are on its ends if (input[0] < input[n-1]) { std::cout << "NIE\n"; } else { std::cout << "TAK\n" << "1 2\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 | #include <iostream> #include <vector> #include <algorithm> #include <climits> int main() { std::ios_base::sync_with_stdio(0); std::cin.tie(0); std::cout.tie(0); int n, k; std::cin >> n >> k; std::vector<int> input(n); for (int i = 0; i < n; ++i) { std::cin >> input[i]; } std::vector<int> prefmin(n); std::vector<int> sufmax(n); prefmin[0] = input[0]; for (int i = 1; i < n; ++i) { prefmin[i] = std::min(prefmin[i-1], input[i]); } sufmax[n-1] = input[n-1]; for (int i = n-2; i >= 0; --i) { sufmax[i] = std::max(sufmax[i+1], input[i]); } if (k == 2) { for (int i = 0; i < n-1; ++i) { if (prefmin[i] >= sufmax[i+1]) { std::cout << "TAK\n" << (i +1) << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k >= 4) { if (input[0] >= input[1]) { std::cout << "TAK\n" << "1 2"; int cnt = 2; for (int i = 2; cnt < k-1 && i < n; ++i) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } if (input[n-2] >= input[n-1]) { std::cout << "TAK\n"; int cnt = 2; for (int i = 0; cnt < k-1 && i < n-3; ++i) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (n-3 +1) << ' ' << (n-2 +1) << '\n'; return 0; } for (int i = 2; i < n-1; ++i) { if (input[i-1] >= input[i]) { std::cout << "TAK\n"; int cnt = 3; for (int j = 0; cnt < k-1 && j < i-2; ++j) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (i-2 +1) << ' ' << (i-1 +1) << ' ' << (i +1); for (int j = i+1; cnt < k-1 && j < n; ++j) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k == 3) { int maxval = -1; for (int i = 0; i < n; ++i) { if (input[i] >= maxval) { maxval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == maxval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } int minval = INT_MAX; for (int i = 0; i < n; ++i) { if (input[i] <= minval) { minval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == minval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } // That means the only minimum and maximum elements in the array are on its ends if (input[0] < input[n-1]) { std::cout << "NIE\n"; } else { std::cout << "TAK\n" << "1 2\n"; } } return 0; } |