#include <iostream> #include <vector> #include <algorithm> using namespace std; const int N = 500000+2; int a[N]; long long int m[N]; long long int min(long long int a, long long int b) { if(a < b) return a; return b; } long long int max(long long int a, long long int b) { if(a > b) return a; return b; } void solve2(int n) { m[n-1] = a[n-1]; long long int c = a[n-1]; for(int i = n-2; i >= 0; --i) { m[i] = max(a[i], c); } c = a[0]; for(int i = 1; i < n-1; ++i) { if(c > m[i]) { cout << "TAK\n"; cout << i << '\n'; return; } c = min(c, a[i]); } cout << "NIE\n"; } void solve3(int n) { int mx = *max_element(a, a+n); int mn = *min_element(a, a+n); int mni = 0; for(int i = 1; i < n; ++i) { if(a[i] == mn) { mni = i; break; } } if(mni > 0) { cout << "TAK\n"; cout << mni << ' ' << mni+1 << '\n'; return; } int mxi = n-1; for(int i = n-2; i >= 0; --i) { if(a[i] == mx) { mxi = i; break; } } if(mxi == n-1) { cout << "NIE\n"; return; } cout << "TAK\n"; cout << mxi << ' ' << mxi+1 << '\n'; } void solve4(int n, int k) { int id = -1; for(int i = 1; i < n; ++i) { if(a[i-1] >= a[i]) { id = i-1; break; } } if(id == -1) { cout << "NIE\n"; return; } cout << "TAK\n"; for(int i = 0; i < id && i < k-4; ++i) { cout << i+1 << ' '; } if(id == 0) { cout << id+1 << ' ' << id+2 << ' '; } else { cout << id << ' ' << id+1 << ' ' << id+2 << ' '; } for(int i = id+2; i < k-1; ++i) { cout << i+1 << ' '; } cout << '\n'; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n, k; cin >> n >> k; for(int i = 0; i < n; ++i) { cin >> a[i]; } if(k == 2) { solve2(n); } else if(k == 3) { solve3(n); } else { solve4(n, k); } 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 | #include <iostream> #include <vector> #include <algorithm> using namespace std; const int N = 500000+2; int a[N]; long long int m[N]; long long int min(long long int a, long long int b) { if(a < b) return a; return b; } long long int max(long long int a, long long int b) { if(a > b) return a; return b; } void solve2(int n) { m[n-1] = a[n-1]; long long int c = a[n-1]; for(int i = n-2; i >= 0; --i) { m[i] = max(a[i], c); } c = a[0]; for(int i = 1; i < n-1; ++i) { if(c > m[i]) { cout << "TAK\n"; cout << i << '\n'; return; } c = min(c, a[i]); } cout << "NIE\n"; } void solve3(int n) { int mx = *max_element(a, a+n); int mn = *min_element(a, a+n); int mni = 0; for(int i = 1; i < n; ++i) { if(a[i] == mn) { mni = i; break; } } if(mni > 0) { cout << "TAK\n"; cout << mni << ' ' << mni+1 << '\n'; return; } int mxi = n-1; for(int i = n-2; i >= 0; --i) { if(a[i] == mx) { mxi = i; break; } } if(mxi == n-1) { cout << "NIE\n"; return; } cout << "TAK\n"; cout << mxi << ' ' << mxi+1 << '\n'; } void solve4(int n, int k) { int id = -1; for(int i = 1; i < n; ++i) { if(a[i-1] >= a[i]) { id = i-1; break; } } if(id == -1) { cout << "NIE\n"; return; } cout << "TAK\n"; for(int i = 0; i < id && i < k-4; ++i) { cout << i+1 << ' '; } if(id == 0) { cout << id+1 << ' ' << id+2 << ' '; } else { cout << id << ' ' << id+1 << ' ' << id+2 << ' '; } for(int i = id+2; i < k-1; ++i) { cout << i+1 << ' '; } cout << '\n'; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n, k; cin >> n >> k; for(int i = 0; i < n; ++i) { cin >> a[i]; } if(k == 2) { solve2(n); } else if(k == 3) { solve3(n); } else { solve4(n, k); } return 0; } |