#include <cstdio> #include <algorithm> #define MAX_N 500010 using namespace std; int n, k; int perf[MAX_N]; int prefMin[MAX_N]; int sufMax[MAX_N]; bool writeDown[MAX_N]; void solveLargeK() { int index = -1; for (int i = 1; i < n; i++) { if (perf[i] <= perf[i - 1]) { index = i; break; } } if (index == -1) { printf("NIE\n"); return; } int left = k - 1; writeDown[index] = true; left--; if (index + 1 != n) { writeDown[index + 1] = true; left--; } printf("TAK\n"); for (int i = 1; i < n; i++) { if (!writeDown[i] && left > 0) { writeDown[i] = true; left--; } if (writeDown[i]) printf("%d ", i); } printf("\n"); } void solveK3() { int maxI = 0; int minI = 0; for (int i = 1; i < n; i++) { if (perf[i] > perf[maxI]) { maxI = i; } if (perf[i] <= perf[minI]) { minI = i; } } if (maxI != n - 1) { //printf("TAK\n"); printf("TAK\n%d %d\n", maxI, maxI + 1); return; } else if (minI != 0) { //printf("TAK\n"); printf("TAK\n%d %d\n", minI, minI + 1); return; } else { printf("NIE\n"); return; } } void solveK2() { prefMin[0] = perf[0]; for (int i = 1; i < n; i++) { prefMin[i] = min(prefMin[i - 1], perf[i]); } sufMax[n - 1] = perf[n - 1]; for (int i = n - 2; i >= 0; i--) { sufMax[i] = max(sufMax[i + 1], perf[i]); } for (int i = 1; i < n; i++) { if (prefMin[i - 1] >= sufMax[i]) { //printf("TAK\n"); printf("TAK\n%d\n", i); return; } } printf("NIE\n"); return; } int main() { scanf("%d%d", &n, &k); for (int i = 0; i < n; i++) { scanf("%d", &perf[i]); } if (k == 1) { printf("NIE\n"); } else if (k == 2) { solveK2(); } else if (k == 3) { solveK3(); } else { solveLargeK(); } }
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 | #include <cstdio> #include <algorithm> #define MAX_N 500010 using namespace std; int n, k; int perf[MAX_N]; int prefMin[MAX_N]; int sufMax[MAX_N]; bool writeDown[MAX_N]; void solveLargeK() { int index = -1; for (int i = 1; i < n; i++) { if (perf[i] <= perf[i - 1]) { index = i; break; } } if (index == -1) { printf("NIE\n"); return; } int left = k - 1; writeDown[index] = true; left--; if (index + 1 != n) { writeDown[index + 1] = true; left--; } printf("TAK\n"); for (int i = 1; i < n; i++) { if (!writeDown[i] && left > 0) { writeDown[i] = true; left--; } if (writeDown[i]) printf("%d ", i); } printf("\n"); } void solveK3() { int maxI = 0; int minI = 0; for (int i = 1; i < n; i++) { if (perf[i] > perf[maxI]) { maxI = i; } if (perf[i] <= perf[minI]) { minI = i; } } if (maxI != n - 1) { //printf("TAK\n"); printf("TAK\n%d %d\n", maxI, maxI + 1); return; } else if (minI != 0) { //printf("TAK\n"); printf("TAK\n%d %d\n", minI, minI + 1); return; } else { printf("NIE\n"); return; } } void solveK2() { prefMin[0] = perf[0]; for (int i = 1; i < n; i++) { prefMin[i] = min(prefMin[i - 1], perf[i]); } sufMax[n - 1] = perf[n - 1]; for (int i = n - 2; i >= 0; i--) { sufMax[i] = max(sufMax[i + 1], perf[i]); } for (int i = 1; i < n; i++) { if (prefMin[i - 1] >= sufMax[i]) { //printf("TAK\n"); printf("TAK\n%d\n", i); return; } } printf("NIE\n"); return; } int main() { scanf("%d%d", &n, &k); for (int i = 0; i < n; i++) { scanf("%d", &perf[i]); } if (k == 1) { printf("NIE\n"); } else if (k == 2) { solveK2(); } else if (k == 3) { solveK3(); } else { solveLargeK(); } } |