#include<bits/stdc++.h> using namespace std; int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, k; cin>>n>>k; vector<int> v(n); for(int i= 0; i < n; i++)cin>>v[i]; if(k == 2){ vector<int> prefMin(n); prefMin[0] = v[0]; for(int i= 1; i < n; i++){ prefMin[i] = min(prefMin[i-1], v[i]); } vector<int> sufMax(n); sufMax[n-1] = v[n-1]; for(int i = n-2; i >= 0; i--){ sufMax[i] = max(sufMax[i+1], v[i]); } for(int i =0; i < n-1; i++){ //cout<<i<<" "<<prefMin[i]<<" "<<sufMax[i+1]<<"\n"; if(prefMin[i] >= sufMax[i+1]){ cout<<"TAK\n"; cout<<(i+1)<<"\n"; return 0; } } cout<<"NIE\n"; return 0; }else if(k == 3){ int minVal = v[0]; int maxVal = v[0]; for(int i= 0; i < n; i++){ minVal = min(minVal, v[i]); maxVal = max(maxVal, v[i]); } int minPos = -1; int maxPos = -1; for(int i= 1; i < n; i++){ if(v[i] == minVal){ minPos = i; break; } } for(int i = n-2; i >= 0; i--){ if(v[i] == maxVal){ maxPos = i; break; } } if(minPos == -1 && maxPos == -1){ cout<<"NIE\n"; return 0; } if(minPos != -1){ cout<<"TAK\n"; if(minPos == n-1){ cout<<1<<" "<<(n-1)<<"\n"; }else{ cout<<minPos<<" "<<(minPos + 1)<<"\n"; } return 0; } if(maxPos != -1){ cout<<"TAK\n"; if(maxPos == 0){ cout<<"1 2"<<"\n"; }else{ cout<<maxPos<<" "<<(maxPos + 1)<<"\n"; } return 0; } }else if(k >= 4){ vector<bool> mark(n, false); bool increasing = true; for(int i= 0; i < n-1; i++){ if(v[i] >= v[i+1]){ if(i > 0){ mark[i-1] = true; k--; } mark[i] = true; if(i + 1 < n-1){ mark[i+1] = true; k--; } increasing = false; break; } } if(increasing){ cout<<"NIE\n"; return 0; }else{ k -= 2; for(int i = 0; i < n; i++){ if(k > 0 && !mark[i]){ k--; mark[i] = true; } } cout<<"TAK\n"; for(int i = 0; i < n; i++){ if(mark[i])cout<<(i+1)<<" "; } cout<<"\n"; return 0; } } 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 | #include<bits/stdc++.h> using namespace std; int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, k; cin>>n>>k; vector<int> v(n); for(int i= 0; i < n; i++)cin>>v[i]; if(k == 2){ vector<int> prefMin(n); prefMin[0] = v[0]; for(int i= 1; i < n; i++){ prefMin[i] = min(prefMin[i-1], v[i]); } vector<int> sufMax(n); sufMax[n-1] = v[n-1]; for(int i = n-2; i >= 0; i--){ sufMax[i] = max(sufMax[i+1], v[i]); } for(int i =0; i < n-1; i++){ //cout<<i<<" "<<prefMin[i]<<" "<<sufMax[i+1]<<"\n"; if(prefMin[i] >= sufMax[i+1]){ cout<<"TAK\n"; cout<<(i+1)<<"\n"; return 0; } } cout<<"NIE\n"; return 0; }else if(k == 3){ int minVal = v[0]; int maxVal = v[0]; for(int i= 0; i < n; i++){ minVal = min(minVal, v[i]); maxVal = max(maxVal, v[i]); } int minPos = -1; int maxPos = -1; for(int i= 1; i < n; i++){ if(v[i] == minVal){ minPos = i; break; } } for(int i = n-2; i >= 0; i--){ if(v[i] == maxVal){ maxPos = i; break; } } if(minPos == -1 && maxPos == -1){ cout<<"NIE\n"; return 0; } if(minPos != -1){ cout<<"TAK\n"; if(minPos == n-1){ cout<<1<<" "<<(n-1)<<"\n"; }else{ cout<<minPos<<" "<<(minPos + 1)<<"\n"; } return 0; } if(maxPos != -1){ cout<<"TAK\n"; if(maxPos == 0){ cout<<"1 2"<<"\n"; }else{ cout<<maxPos<<" "<<(maxPos + 1)<<"\n"; } return 0; } }else if(k >= 4){ vector<bool> mark(n, false); bool increasing = true; for(int i= 0; i < n-1; i++){ if(v[i] >= v[i+1]){ if(i > 0){ mark[i-1] = true; k--; } mark[i] = true; if(i + 1 < n-1){ mark[i+1] = true; k--; } increasing = false; break; } } if(increasing){ cout<<"NIE\n"; return 0; }else{ k -= 2; for(int i = 0; i < n; i++){ if(k > 0 && !mark[i]){ k--; mark[i] = true; } } cout<<"TAK\n"; for(int i = 0; i < n; i++){ if(mark[i])cout<<(i+1)<<" "; } cout<<"\n"; return 0; } } return 0; } |