#include <bits/stdc++.h> using namespace std; void solve2(int n, vector<int> a) { vector<int> minpref(n - 1), maxsuf(n - 1); minpref[0] = a[0]; for (int i = 1; i < n - 1; i++) { minpref[i] = min(minpref[i - 1], a[i]); } maxsuf[n - 2] = a[n - 1]; for (int i = n - 3; i >= 0; i--) { maxsuf[i] = max(maxsuf[i + 1], a[i + 1]); } for (int i = 0; i < n - 1; i++) { if (minpref[i] >= maxsuf[i]) { cout << "TAK\n" << i + 1 << endl; return; } } cout << "NIE\n"; } void solve3(int n, vector<int> a) { for (int i = 1; i < n; i++) { if (a[i] <= a[0]) { cout << "TAK\n"; if (i + 1 < n) { cout << i << " " << i + 1 << endl; } else { cout << "1 " << i << endl; } return; } } for (int i = 0; i < n - 1; i++) { if (a[i] >= a[n - 1]) { cout << "TAK\n"; if (i > 0) { cout << i << " " << i + 1 << endl; } else { cout << i << " " << n - 1 << endl; } return; } } cout << "NIE\n"; } void solve4(int n, int k, vector<int> a) { vector<int> answer(n - 1); bool sorted = true; for (int i = 0; i < n - 1; i++) { if (a[i] >= a[i + 1]) { sorted = false; answer[i] = true; k--; if (i - 1 >= 0) { answer[i - 1] = true; k--; } if (i + 1 < n - 1) { answer[i + 1] = true; k--; } } } if (sorted) { cout << "NIE\n"; } else { cout << "TAK\n"; for (int i = 0; i < n - 1; i++) { if (answer[i] || (!answer[i] && k > 1)) { cout << i + 1 << " "; k--; } } cout << endl; } } int main() { ios_base::sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> a(n); for (int i = 0; i < n; i++) { cin >> a[i]; } if (k == 2) { solve2(n, a); } else if (k == 3) { solve3(n, a); } else { solve4(n, k, a); } 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 | #include <bits/stdc++.h> using namespace std; void solve2(int n, vector<int> a) { vector<int> minpref(n - 1), maxsuf(n - 1); minpref[0] = a[0]; for (int i = 1; i < n - 1; i++) { minpref[i] = min(minpref[i - 1], a[i]); } maxsuf[n - 2] = a[n - 1]; for (int i = n - 3; i >= 0; i--) { maxsuf[i] = max(maxsuf[i + 1], a[i + 1]); } for (int i = 0; i < n - 1; i++) { if (minpref[i] >= maxsuf[i]) { cout << "TAK\n" << i + 1 << endl; return; } } cout << "NIE\n"; } void solve3(int n, vector<int> a) { for (int i = 1; i < n; i++) { if (a[i] <= a[0]) { cout << "TAK\n"; if (i + 1 < n) { cout << i << " " << i + 1 << endl; } else { cout << "1 " << i << endl; } return; } } for (int i = 0; i < n - 1; i++) { if (a[i] >= a[n - 1]) { cout << "TAK\n"; if (i > 0) { cout << i << " " << i + 1 << endl; } else { cout << i << " " << n - 1 << endl; } return; } } cout << "NIE\n"; } void solve4(int n, int k, vector<int> a) { vector<int> answer(n - 1); bool sorted = true; for (int i = 0; i < n - 1; i++) { if (a[i] >= a[i + 1]) { sorted = false; answer[i] = true; k--; if (i - 1 >= 0) { answer[i - 1] = true; k--; } if (i + 1 < n - 1) { answer[i + 1] = true; k--; } } } if (sorted) { cout << "NIE\n"; } else { cout << "TAK\n"; for (int i = 0; i < n - 1; i++) { if (answer[i] || (!answer[i] && k > 1)) { cout << i + 1 << " "; k--; } } cout << endl; } } int main() { ios_base::sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> a(n); for (int i = 0; i < n; i++) { cin >> a[i]; } if (k == 2) { solve2(n, a); } else if (k == 3) { solve3(n, a); } else { solve4(n, k, a); } return 0; } |