#include <bits/stdc++.h> using namespace std; #define ll long long #define rng(i,a,b) for(int i=int(a);i<int(b);i++) #define rep(i,b) rng(i,0,b) #define NODEBUG typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<vvi> vvvi; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<vvl> vvvl; typedef pair<int,int> ii; template<class t> using vc=vector<t>; template<class t> using vvc=vc<vc<t>>; const int MOD = 998244353; ll read(){ ll i; cin>>i; return i; } vi readvi(int n,int off=0,int shift=0){ vi v(n+shift); rep(i,shift)v[i]=0; rep(i,n)v[i+shift]=read()+off; return v; } void YesNo(bool condition, bool do_exit=true) { if (condition) cout << "Yes" << endl; else cout << "No" << endl; if (do_exit) exit(0); } int main(void ) { ios::sync_with_stdio(false); cin.tie(NULL); int n,k; cin >> n >> k; vi a = readvi(n); if (k == 2) { vi pref_min(n); pref_min[0] = a[0]; rng(i,1,n) pref_min[i] = min(pref_min[i-1],a[i]); vi suf_max(n); suf_max[n-1] = a[n-1]; for (int i=n-2; i>=0; --i) suf_max[i] = max(suf_max[i+1],a[i]); rep(i,n-1) if (pref_min[i] >= suf_max[i+1]) { cout << "TAK" << endl; #ifndef DEBUG cout << i+1 << endl; #endif return 0; } cout << "NIE" << endl; } else if (k == 3) { int first_max = n-1; for (int i=n-2; i>=0; --i) if (a[i] >= a[first_max]) first_max = i; int last_min = 0; rng(i,1,n) if (a[i] <= a[last_min]) last_min = i; if (first_max < n-1) { cout << "TAK" << endl; #ifndef DEBUG if (first_max == 0) cout << 1 << " " << 2 << endl; else cout << first_max << " " << first_max+1 << endl; #endif } else if (last_min > 0) { cout << "TAK" << endl; #ifndef DEBUG if (last_min == n-1) cout << 1 << " " << n-1 << endl; else cout << last_min << " " << last_min + 1 << endl; #endif } else //last_min == 0 and first_max == n-1, so unique min at 0 and unique max at n-1 cout << "NIE" << endl; } else { // k >= 4 rep(i,n-1) if (a[i] >= a[i+1]) { cout << "TAK" << endl; #ifndef DEBUG vector<bool> used(n, false); int num_used = 0; if (i > 0) { used[i-1] = true; ++num_used; } used[i] = true; ++num_used; used[i+1] = true; ++num_used; if (i+1 < n-1) { used[n-1] = true; ++num_used; } rep(j,n-1) { if (not used[j] and num_used < k) { used[j] = true; ++num_used; } if (used[j]) cout << j+1 << " "; } #endif return 0; } cout << "NIE" << endl; } 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | #include <bits/stdc++.h> using namespace std; #define ll long long #define rng(i,a,b) for(int i=int(a);i<int(b);i++) #define rep(i,b) rng(i,0,b) #define NODEBUG typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<vvi> vvvi; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<vvl> vvvl; typedef pair<int,int> ii; template<class t> using vc=vector<t>; template<class t> using vvc=vc<vc<t>>; const int MOD = 998244353; ll read(){ ll i; cin>>i; return i; } vi readvi(int n,int off=0,int shift=0){ vi v(n+shift); rep(i,shift)v[i]=0; rep(i,n)v[i+shift]=read()+off; return v; } void YesNo(bool condition, bool do_exit=true) { if (condition) cout << "Yes" << endl; else cout << "No" << endl; if (do_exit) exit(0); } int main(void ) { ios::sync_with_stdio(false); cin.tie(NULL); int n,k; cin >> n >> k; vi a = readvi(n); if (k == 2) { vi pref_min(n); pref_min[0] = a[0]; rng(i,1,n) pref_min[i] = min(pref_min[i-1],a[i]); vi suf_max(n); suf_max[n-1] = a[n-1]; for (int i=n-2; i>=0; --i) suf_max[i] = max(suf_max[i+1],a[i]); rep(i,n-1) if (pref_min[i] >= suf_max[i+1]) { cout << "TAK" << endl; #ifndef DEBUG cout << i+1 << endl; #endif return 0; } cout << "NIE" << endl; } else if (k == 3) { int first_max = n-1; for (int i=n-2; i>=0; --i) if (a[i] >= a[first_max]) first_max = i; int last_min = 0; rng(i,1,n) if (a[i] <= a[last_min]) last_min = i; if (first_max < n-1) { cout << "TAK" << endl; #ifndef DEBUG if (first_max == 0) cout << 1 << " " << 2 << endl; else cout << first_max << " " << first_max+1 << endl; #endif } else if (last_min > 0) { cout << "TAK" << endl; #ifndef DEBUG if (last_min == n-1) cout << 1 << " " << n-1 << endl; else cout << last_min << " " << last_min + 1 << endl; #endif } else //last_min == 0 and first_max == n-1, so unique min at 0 and unique max at n-1 cout << "NIE" << endl; } else { // k >= 4 rep(i,n-1) if (a[i] >= a[i+1]) { cout << "TAK" << endl; #ifndef DEBUG vector<bool> used(n, false); int num_used = 0; if (i > 0) { used[i-1] = true; ++num_used; } used[i] = true; ++num_used; used[i+1] = true; ++num_used; if (i+1 < n-1) { used[n-1] = true; ++num_used; } rep(j,n-1) { if (not used[j] and num_used < k) { used[j] = true; ++num_used; } if (used[j]) cout << j+1 << " "; } #endif return 0; } cout << "NIE" << endl; } return 0; } |