#include <bits/stdc++.h> using namespace std; #pragma GCC maksuje_zadania_na_essie("pot200"); bool is_increasing(const vector<int> &arr) { for(int i = 1; i < arr.size(); i++) { if(arr[i] <= arr[i-1]) return false; } return true; } void finish_yep(const vector<int> &indeces) { cout << "TAK\n"; #ifndef NO_INDECES for(int i : indeces) { cout << i << ' '; } cout << '\n'; #endif exit(0); } void finish_nope() { cout << "NIE\n"; exit(0); } void solve_K2(int n, const vector<int> &inp) { vector<int> min_pref(n); min_pref[0] = inp[0]; vector<int> max_suff(n); max_suff[n-1] = inp[n-1]; for(int i = 1; i < n; i++) { min_pref[i] = min(min_pref[i-1], inp[i]); max_suff[n-i-1] = max(max_suff[n-i], inp[n-i-1]); } for(int i = 1; i < n; i++) { if(min_pref[i-1] >= max_suff[i]) { finish_yep({ i }); } } finish_nope(); } void solve_K3(int n, const vector<int> &inp) { int min_pref = inp[0]; int max_suff = inp[n-1]; for(int i = 1; i < n-1; i++) { if(min_pref >= inp[i]) finish_yep({ i, i+1 }); if(max_suff <= inp[n-i-1]) finish_yep({ n-i-1,n-i }); min_pref = min(min_pref, inp[i]); max_suff = max(max_suff, inp[n-i-1]); } finish_nope(); } void solve_KG3(int n, int k, const vector<int> &inp) { vector<int> used(n+2); vector<int> indeces; for(int i = 1; i < n-1; i++) { if(inp[i] >= inp[i+1]) { used[i] = used[i+1] = used[i+2] = 1; k -= 3 - (i == 0 || i+2 == n); break; } } for(int i = 1; i < n; i++) { if(!used[i] && k > 1) used[i] = 1, k--; if(used[i]) indeces.push_back(i); } finish_yep(indeces); } int main() { cin.tie(0)->sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> inp(n); for(int i = 0; i < n; i++) cin >> inp[i]; if(is_increasing(inp)) finish_nope(); if(k == 2) solve_K2(n, inp); else if(k == 3) solve_K3(n, inp); else solve_KG3(n, k, inp); }
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 | #include <bits/stdc++.h> using namespace std; #pragma GCC maksuje_zadania_na_essie("pot200"); bool is_increasing(const vector<int> &arr) { for(int i = 1; i < arr.size(); i++) { if(arr[i] <= arr[i-1]) return false; } return true; } void finish_yep(const vector<int> &indeces) { cout << "TAK\n"; #ifndef NO_INDECES for(int i : indeces) { cout << i << ' '; } cout << '\n'; #endif exit(0); } void finish_nope() { cout << "NIE\n"; exit(0); } void solve_K2(int n, const vector<int> &inp) { vector<int> min_pref(n); min_pref[0] = inp[0]; vector<int> max_suff(n); max_suff[n-1] = inp[n-1]; for(int i = 1; i < n; i++) { min_pref[i] = min(min_pref[i-1], inp[i]); max_suff[n-i-1] = max(max_suff[n-i], inp[n-i-1]); } for(int i = 1; i < n; i++) { if(min_pref[i-1] >= max_suff[i]) { finish_yep({ i }); } } finish_nope(); } void solve_K3(int n, const vector<int> &inp) { int min_pref = inp[0]; int max_suff = inp[n-1]; for(int i = 1; i < n-1; i++) { if(min_pref >= inp[i]) finish_yep({ i, i+1 }); if(max_suff <= inp[n-i-1]) finish_yep({ n-i-1,n-i }); min_pref = min(min_pref, inp[i]); max_suff = max(max_suff, inp[n-i-1]); } finish_nope(); } void solve_KG3(int n, int k, const vector<int> &inp) { vector<int> used(n+2); vector<int> indeces; for(int i = 1; i < n-1; i++) { if(inp[i] >= inp[i+1]) { used[i] = used[i+1] = used[i+2] = 1; k -= 3 - (i == 0 || i+2 == n); break; } } for(int i = 1; i < n; i++) { if(!used[i] && k > 1) used[i] = 1, k--; if(used[i]) indeces.push_back(i); } finish_yep(indeces); } int main() { cin.tie(0)->sync_with_stdio(false); int n, k; cin >> n >> k; vector<int> inp(n); for(int i = 0; i < n; i++) cin >> inp[i]; if(is_increasing(inp)) finish_nope(); if(k == 2) solve_K2(n, inp); else if(k == 3) solve_K3(n, inp); else solve_KG3(n, k, inp); } |