#include <iostream>
#include <vector>
#include <algorithm>
#include <climits>
int main() {
std::ios_base::sync_with_stdio(0); std::cin.tie(0); std::cout.tie(0);
int n, k;
std::cin >> n >> k;
std::vector<int> input(n);
for (int i = 0; i < n; ++i) {
std::cin >> input[i];
}
std::vector<int> prefmin(n);
std::vector<int> sufmax(n);
prefmin[0] = input[0];
for (int i = 1; i < n; ++i) {
prefmin[i] = std::min(prefmin[i-1], input[i]);
}
sufmax[n-1] = input[n-1];
for (int i = n-2; i >= 0; --i) {
sufmax[i] = std::max(sufmax[i+1], input[i]);
}
if (k == 2) {
for (int i = 0; i < n-1; ++i) {
if (prefmin[i] >= sufmax[i+1]) {
std::cout << "TAK\n" << (i +1) << '\n';
return 0;
}
}
std::cout << "NIE\n";
return 0;
}
if (k >= 4) {
if (input[0] >= input[1]) {
std::cout << "TAK\n" << "1 2";
int cnt = 2;
for (int i = 2; cnt < k-1 && i < n; ++i) {
std::cout << ' ' << (i +1);
++cnt;
}
std::cout << '\n';
return 0;
}
if (input[n-2] >= input[n-1]) {
std::cout << "TAK\n";
int cnt = 2;
for (int i = 0; cnt < k-1 && i < n-3; ++i) {
std::cout << (i +1) << ' ';
++cnt;
}
std::cout << (n-3 +1) << ' ' << (n-2 +1) << '\n';
return 0;
}
for (int i = 2; i < n-1; ++i) {
if (input[i-1] >= input[i]) {
std::cout << "TAK\n";
int cnt = 3;
for (int j = 0; cnt < k-1 && j < i-2; ++j) {
std::cout << (i +1) << ' ';
++cnt;
}
std::cout << (i-2 +1) << ' ' << (i-1 +1) << ' ' << (i +1);
for (int j = i+1; cnt < k-1 && j < n; ++j) {
std::cout << ' ' << (i +1);
++cnt;
}
std::cout << '\n';
return 0;
}
}
std::cout << "NIE\n";
return 0;
}
if (k == 3) {
int maxval = -1;
for (int i = 0; i < n; ++i) {
if (input[i] >= maxval) {
maxval = input[i];
}
}
for (int i = 1; i < n-1; ++i) {
if (input[i] == maxval) {
std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n';
return 0;
}
}
int minval = INT_MAX;
for (int i = 0; i < n; ++i) {
if (input[i] <= minval) {
minval = input[i];
}
}
for (int i = 1; i < n-1; ++i) {
if (input[i] == minval) {
std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n';
return 0;
}
}
// That means the only minimum and maximum elements in the array are on its ends
if (input[0] < input[n-1]) {
std::cout << "NIE\n";
} else {
std::cout << "TAK\n" << "1 2\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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | #include <iostream> #include <vector> #include <algorithm> #include <climits> int main() { std::ios_base::sync_with_stdio(0); std::cin.tie(0); std::cout.tie(0); int n, k; std::cin >> n >> k; std::vector<int> input(n); for (int i = 0; i < n; ++i) { std::cin >> input[i]; } std::vector<int> prefmin(n); std::vector<int> sufmax(n); prefmin[0] = input[0]; for (int i = 1; i < n; ++i) { prefmin[i] = std::min(prefmin[i-1], input[i]); } sufmax[n-1] = input[n-1]; for (int i = n-2; i >= 0; --i) { sufmax[i] = std::max(sufmax[i+1], input[i]); } if (k == 2) { for (int i = 0; i < n-1; ++i) { if (prefmin[i] >= sufmax[i+1]) { std::cout << "TAK\n" << (i +1) << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k >= 4) { if (input[0] >= input[1]) { std::cout << "TAK\n" << "1 2"; int cnt = 2; for (int i = 2; cnt < k-1 && i < n; ++i) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } if (input[n-2] >= input[n-1]) { std::cout << "TAK\n"; int cnt = 2; for (int i = 0; cnt < k-1 && i < n-3; ++i) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (n-3 +1) << ' ' << (n-2 +1) << '\n'; return 0; } for (int i = 2; i < n-1; ++i) { if (input[i-1] >= input[i]) { std::cout << "TAK\n"; int cnt = 3; for (int j = 0; cnt < k-1 && j < i-2; ++j) { std::cout << (i +1) << ' '; ++cnt; } std::cout << (i-2 +1) << ' ' << (i-1 +1) << ' ' << (i +1); for (int j = i+1; cnt < k-1 && j < n; ++j) { std::cout << ' ' << (i +1); ++cnt; } std::cout << '\n'; return 0; } } std::cout << "NIE\n"; return 0; } if (k == 3) { int maxval = -1; for (int i = 0; i < n; ++i) { if (input[i] >= maxval) { maxval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == maxval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } int minval = INT_MAX; for (int i = 0; i < n; ++i) { if (input[i] <= minval) { minval = input[i]; } } for (int i = 1; i < n-1; ++i) { if (input[i] == minval) { std::cout << "TAK\n" << (i-1 +1) << ' ' << (i +1) << '\n'; return 0; } } // That means the only minimum and maximum elements in the array are on its ends if (input[0] < input[n-1]) { std::cout << "NIE\n"; } else { std::cout << "TAK\n" << "1 2\n"; } } return 0; } |
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