#include <iostream> #include <algorithm> #include <vector> using namespace std; int const N = 5e5 + 9; int n, k; int tab[N]; pair<int,int> tab2[N]; int mini[N]; //pref int maxi[N]; //suf bool dwa(int n2) { sort(tab2 + 1, tab2 + n2+ 1); for (int i = n; i >= 1; i--) maxi[i] = max(maxi[i + 1], tab[i]); for (int i = 1; i <= n; i++) mini[i] = min(mini[i - 1], tab[i]); for (int i = 1; i < n; i++) { if (mini[i] > maxi[i + 1]) { cout << "TAK\n"; cout << i << "\n"; return true; } } cout << "NIE\n"; return false; } bool odw[N]; void cztery() { sort(tab2 + 1, tab2 + n + 1); bool pos = false; odw[n] = true; for (int i = n; i >= 1; i--) { if (tab2[i].second != i) { pos = true; odw[tab2[i].second] = true; odw[tab2[i].second - 1] = true; odw[i + 1] = true; } } if (pos == false) { cout << "NIE\n"; return; } int ile = 4, index = 1; while (ile < k) { if (odw[index] == false) { odw[index] = true; ile++; } index++; } cout << "TAK\n"; for (int i = 1; i < n; i++) { if (odw[i] == true) cout << i << " "; } cout << "\n"; } void trzy() { sort(tab2 + 1, tab2 + n + 1); int maxi = tab2[n].first, ile = 0; for (int i = n; i >= 1; i--) { if (tab2[n].first != maxi) break; if (tab2[n].second != i) { // to da sie wziac tego cout << "TAK\n"; cout << tab2[n].second - 1 << " " << tab2[n].second << "\n"; return; } ile++; } for (int i = 1; i <= n - ile; i++) tab2[i] = { tab[i], i }; bool odp = dwa(n - ile); if (odp == true) cout << n - ile << "\n"; } void solve() { cin >> n >> k; for (int i = 1; i <= n; i++) { cin >> tab[i]; tab2[i] = { tab[i], i }; } if (k == 2) dwa(n); else if (k == 3) trzy(); else cztery(); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); }
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 | #include <iostream> #include <algorithm> #include <vector> using namespace std; int const N = 5e5 + 9; int n, k; int tab[N]; pair<int,int> tab2[N]; int mini[N]; //pref int maxi[N]; //suf bool dwa(int n2) { sort(tab2 + 1, tab2 + n2+ 1); for (int i = n; i >= 1; i--) maxi[i] = max(maxi[i + 1], tab[i]); for (int i = 1; i <= n; i++) mini[i] = min(mini[i - 1], tab[i]); for (int i = 1; i < n; i++) { if (mini[i] > maxi[i + 1]) { cout << "TAK\n"; cout << i << "\n"; return true; } } cout << "NIE\n"; return false; } bool odw[N]; void cztery() { sort(tab2 + 1, tab2 + n + 1); bool pos = false; odw[n] = true; for (int i = n; i >= 1; i--) { if (tab2[i].second != i) { pos = true; odw[tab2[i].second] = true; odw[tab2[i].second - 1] = true; odw[i + 1] = true; } } if (pos == false) { cout << "NIE\n"; return; } int ile = 4, index = 1; while (ile < k) { if (odw[index] == false) { odw[index] = true; ile++; } index++; } cout << "TAK\n"; for (int i = 1; i < n; i++) { if (odw[i] == true) cout << i << " "; } cout << "\n"; } void trzy() { sort(tab2 + 1, tab2 + n + 1); int maxi = tab2[n].first, ile = 0; for (int i = n; i >= 1; i--) { if (tab2[n].first != maxi) break; if (tab2[n].second != i) { // to da sie wziac tego cout << "TAK\n"; cout << tab2[n].second - 1 << " " << tab2[n].second << "\n"; return; } ile++; } for (int i = 1; i <= n - ile; i++) tab2[i] = { tab[i], i }; bool odp = dwa(n - ile); if (odp == true) cout << n - ile << "\n"; } void solve() { cin >> n >> k; for (int i = 1; i <= n; i++) { cin >> tab[i]; tab2[i] = { tab[i], i }; } if (k == 2) dwa(n); else if (k == 3) trzy(); else cztery(); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); } |