#include <bits/stdc++.h> using namespace std; #define X first #define Y second #define ii pair<int, int> #define ll long long int n, k, aa[500007], lv, maxik, minik; int d1[1100000]; //drzewo mini int d2[1100000]; //drzewo maxi //Autor: Jakub Wielocha // VI LO Radom int query1(int a, int b, int w, int l, int r) { if(b<l or r<a) return (1e9 +7); if(a<=l and r<=b) return d1[w]; return min(query1(a, b, 2*w, l, (r+l)/2), query1(a, b, 2*w +1, (r+l)/2 +1, r)); } int query2(int a, int b, int w, int l, int r) { if(b<l or r<a) return 0; if(a<=l and r<=b) return d2[w]; return max(query2(a, b, 2*w, l, (r+l)/2), query2(a, b, 2*w +1, (r+l)/2 +1, r)); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n>>k; for(int i = 1;i<=n;i++) cin>>aa[i]; lv = 1; while(lv<n) lv*=2; for(int i = 1;i<=n;i++) d1[i+lv-1] = d2[i+lv-1] = aa[i]; for(int i = lv+n;i<=2*lv;i++) d1[i] = 1e9 +7; for(int i = lv-1;i>0;i--) d2[i] = max(d2[2*i], d2[2*i +1]), d1[i] = min(d1[2*i], d1[2*i +1]); if(k==2) { for(int i = 1;i<n;i++) { minik = query1(1, i, 1, 1, lv); maxik = query2(i+1, n, 1, 1, lv); if(minik>=maxik) { cout<<"TAK\n"; cout<<i; return 0; } } cout<<"NIE\n"; } if(k==3) { for(int i = 1;i<n;i++) if(aa[i]==d2[1]) { cout<<"TAK\n"; if(i!=1) cout<<i-1<<" "<<i; else cout<<i<<" "<<i+1; return 0; } for(int i = 2;i<n;i++) { minik = query1(1, i-1, 1, 1, lv); if(minik>=aa[i]) { cout<<"TAK\n"; cout<<i-1<<" "<<i; return 0; } } cout<<"NIE\n"; } if(k>=4) { for(int i = 1;i<n;i++) if(aa[i]>=aa[i+1]) { cout<<"TAK\n"; set<int> s; if(i!=1) s.insert(i-1); s.insert(i); s.insert(i+1); int pom = 1; while(s.size()<k-1) { s.insert(pom); pom++; } set<int>::iterator it; for(it = s.begin();it!=s.end();it++) cout<<(*it)<<" "; return 0; } cout<<"NIE\n"; } 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 | #include <bits/stdc++.h> using namespace std; #define X first #define Y second #define ii pair<int, int> #define ll long long int n, k, aa[500007], lv, maxik, minik; int d1[1100000]; //drzewo mini int d2[1100000]; //drzewo maxi //Autor: Jakub Wielocha // VI LO Radom int query1(int a, int b, int w, int l, int r) { if(b<l or r<a) return (1e9 +7); if(a<=l and r<=b) return d1[w]; return min(query1(a, b, 2*w, l, (r+l)/2), query1(a, b, 2*w +1, (r+l)/2 +1, r)); } int query2(int a, int b, int w, int l, int r) { if(b<l or r<a) return 0; if(a<=l and r<=b) return d2[w]; return max(query2(a, b, 2*w, l, (r+l)/2), query2(a, b, 2*w +1, (r+l)/2 +1, r)); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n>>k; for(int i = 1;i<=n;i++) cin>>aa[i]; lv = 1; while(lv<n) lv*=2; for(int i = 1;i<=n;i++) d1[i+lv-1] = d2[i+lv-1] = aa[i]; for(int i = lv+n;i<=2*lv;i++) d1[i] = 1e9 +7; for(int i = lv-1;i>0;i--) d2[i] = max(d2[2*i], d2[2*i +1]), d1[i] = min(d1[2*i], d1[2*i +1]); if(k==2) { for(int i = 1;i<n;i++) { minik = query1(1, i, 1, 1, lv); maxik = query2(i+1, n, 1, 1, lv); if(minik>=maxik) { cout<<"TAK\n"; cout<<i; return 0; } } cout<<"NIE\n"; } if(k==3) { for(int i = 1;i<n;i++) if(aa[i]==d2[1]) { cout<<"TAK\n"; if(i!=1) cout<<i-1<<" "<<i; else cout<<i<<" "<<i+1; return 0; } for(int i = 2;i<n;i++) { minik = query1(1, i-1, 1, 1, lv); if(minik>=aa[i]) { cout<<"TAK\n"; cout<<i-1<<" "<<i; return 0; } } cout<<"NIE\n"; } if(k>=4) { for(int i = 1;i<n;i++) if(aa[i]>=aa[i+1]) { cout<<"TAK\n"; set<int> s; if(i!=1) s.insert(i-1); s.insert(i); s.insert(i+1); int pom = 1; while(s.size()<k-1) { s.insert(pom); pom++; } set<int>::iterator it; for(it = s.begin();it!=s.end();it++) cout<<(*it)<<" "; return 0; } cout<<"NIE\n"; } return 0; } |