#include <cstdio>
#include <algorithm>
const int max_n = 600000;
const int max_val = 1000000009;
int n, k;
int input[max_n];
int prev_min[max_n];
int suf_max[max_n];
int longest_streak[max_n];
int main() {
scanf("%d %d", &n, &k);
prev_min[0] = max_val;
longest_streak[0] = 0;
input[0] = max_val;
for (int i = 1; i<= n; ++i) {
scanf("%d", &input[i]);
prev_min[i] = std::min(input[i], prev_min[i - 1]);
if (input[i] > input[i - 1]) longest_streak[i] = 1 + longest_streak[i - 1];
else longest_streak[i] = 1;
}
suf_max[n + 1] = -max_val;
for (int i = n; i >= 1; --i) {
suf_max[i] = std::max(suf_max[i + 1], input[i]);
}
for (int i = 1; i <= n - k + 1; ++i) {
int first_group = prev_min[i];
int last_group = suf_max[i + k - 1];
// check the in the middle.
if (k == 2) {
if (first_group >= last_group) {
printf("TAK\n");
for (int j = 0; j < k - 1; ++j) {
printf("%d ", i + j);
}
printf("\n");
return 0;
}
} else {
// k >= 3
// is first_group < input[i + 1] < .. < input[i + k - 2] < last_group ?
if (first_group >= input[i + 1] || input[i + k - 2] >= last_group ||
longest_streak[i + k - 2] < k - 2) {
printf("TAK\n");
for (int j = 0; j < k - 1; ++j) {
printf("%d ", i + j);
}
printf("\n");
return 0;
}
}
}
printf("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 | #include <cstdio> #include <algorithm> const int max_n = 600000; const int max_val = 1000000009; int n, k; int input[max_n]; int prev_min[max_n]; int suf_max[max_n]; int longest_streak[max_n]; int main() { scanf("%d %d", &n, &k); prev_min[0] = max_val; longest_streak[0] = 0; input[0] = max_val; for (int i = 1; i<= n; ++i) { scanf("%d", &input[i]); prev_min[i] = std::min(input[i], prev_min[i - 1]); if (input[i] > input[i - 1]) longest_streak[i] = 1 + longest_streak[i - 1]; else longest_streak[i] = 1; } suf_max[n + 1] = -max_val; for (int i = n; i >= 1; --i) { suf_max[i] = std::max(suf_max[i + 1], input[i]); } for (int i = 1; i <= n - k + 1; ++i) { int first_group = prev_min[i]; int last_group = suf_max[i + k - 1]; // check the in the middle. if (k == 2) { if (first_group >= last_group) { printf("TAK\n"); for (int j = 0; j < k - 1; ++j) { printf("%d ", i + j); } printf("\n"); return 0; } } else { // k >= 3 // is first_group < input[i + 1] < .. < input[i + k - 2] < last_group ? if (first_group >= input[i + 1] || input[i + k - 2] >= last_group || longest_streak[i + k - 2] < k - 2) { printf("TAK\n"); for (int j = 0; j < k - 1; ++j) { printf("%d ", i + j); } printf("\n"); return 0; } } } printf("NIE\n"); return 0; } |
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