#include <bits/stdc++.h> #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size()) #define st first #define nd second using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " using ll = long long; using pii = pair<int,int>; using pll = pair<ll,ll>; using vi = vector<int>; using vll = vector<ll>; int n, k; vi seq; vi GetMinPref() { vi min_pref(n); min_pref[0] = seq[0]; for (int i = 1; i < n; ++i) { min_pref[i] = min(min_pref[i - 1], seq[i]); } return min_pref; } vi GetMaxSuf() { vi max_suf(n); max_suf[n - 1] = seq[n - 1]; for (int i = n - 2; i >= 0; --i) { max_suf[i] = max(max_suf[i + 1], seq[i]); } return max_suf; } vi Solve2() { const vi min_pref = GetMinPref(); const vi max_suf = GetMaxSuf(); for (int last_pref = 0; last_pref < n - 1; ++last_pref) { if (min_pref[last_pref] >= max_suf[last_pref + 1]) { return vi{last_pref + 1}; } } return {}; } vi Solve3() { const vi min_pref = GetMinPref(); const vi max_suf = GetMaxSuf(); for (int i = 1; i < n - 1; ++i) { if (seq[i] == min_pref[i] || seq[i] == max_suf[i]) { return vi{i, i + 1}; } } if (seq[n - 1] == min_pref[n - 1]) { return vi{n - 2, n - 1}; } if (seq[0] == max_suf[0]) { return vi{1, 2}; } return {}; } vi SolveMany() { int loc = -1; for (int i = 1; i < n; ++i) { if (seq[i] <= seq[i - 1]) { loc = i; break; } } if (loc == -1) { return {}; } vector<bool> is_split(n); if (loc - 1 >= 1) { is_split[loc - 1] = true; } is_split[loc] = true; if (loc + 1 < n) { is_split[loc + 1] = true; } int rem_splits = k - count(ALL(is_split), true) - 1; for (int i = 1; i < n; ++i) { if (rem_splits && !is_split[i]) { is_split[i] = true; --rem_splits; } } vi ans; for (int i = 1; i < n; ++i) { if (is_split[i]) { ans.push_back(i); } } return ans; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(11); cerr << fixed << setprecision(6); cin >> n >> k; seq.resize(n); for (int &x : seq) { cin >> x; } vi res; if (k == 2) { res = Solve2(); } else if (k == 3) { res = Solve3(); } else { assert(k >= 4); res = SolveMany(); } if (res.empty()) { cout << "NIE\n"; } else { cout << "TAK\n"; for (int i = 0; i < SZ(res); ++i) { if (i) { cout << " "; } cout << res[i]; } cout << "\n"; } }
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 | #include <bits/stdc++.h> #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size()) #define st first #define nd second using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " using ll = long long; using pii = pair<int,int>; using pll = pair<ll,ll>; using vi = vector<int>; using vll = vector<ll>; int n, k; vi seq; vi GetMinPref() { vi min_pref(n); min_pref[0] = seq[0]; for (int i = 1; i < n; ++i) { min_pref[i] = min(min_pref[i - 1], seq[i]); } return min_pref; } vi GetMaxSuf() { vi max_suf(n); max_suf[n - 1] = seq[n - 1]; for (int i = n - 2; i >= 0; --i) { max_suf[i] = max(max_suf[i + 1], seq[i]); } return max_suf; } vi Solve2() { const vi min_pref = GetMinPref(); const vi max_suf = GetMaxSuf(); for (int last_pref = 0; last_pref < n - 1; ++last_pref) { if (min_pref[last_pref] >= max_suf[last_pref + 1]) { return vi{last_pref + 1}; } } return {}; } vi Solve3() { const vi min_pref = GetMinPref(); const vi max_suf = GetMaxSuf(); for (int i = 1; i < n - 1; ++i) { if (seq[i] == min_pref[i] || seq[i] == max_suf[i]) { return vi{i, i + 1}; } } if (seq[n - 1] == min_pref[n - 1]) { return vi{n - 2, n - 1}; } if (seq[0] == max_suf[0]) { return vi{1, 2}; } return {}; } vi SolveMany() { int loc = -1; for (int i = 1; i < n; ++i) { if (seq[i] <= seq[i - 1]) { loc = i; break; } } if (loc == -1) { return {}; } vector<bool> is_split(n); if (loc - 1 >= 1) { is_split[loc - 1] = true; } is_split[loc] = true; if (loc + 1 < n) { is_split[loc + 1] = true; } int rem_splits = k - count(ALL(is_split), true) - 1; for (int i = 1; i < n; ++i) { if (rem_splits && !is_split[i]) { is_split[i] = true; --rem_splits; } } vi ans; for (int i = 1; i < n; ++i) { if (is_split[i]) { ans.push_back(i); } } return ans; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(11); cerr << fixed << setprecision(6); cin >> n >> k; seq.resize(n); for (int &x : seq) { cin >> x; } vi res; if (k == 2) { res = Solve2(); } else if (k == 3) { res = Solve3(); } else { assert(k >= 4); res = SolveMany(); } if (res.empty()) { cout << "NIE\n"; } else { cout << "TAK\n"; for (int i = 0; i < SZ(res); ++i) { if (i) { cout << " "; } cout << res[i]; } cout << "\n"; } } |