vector data(RMQ_SIZE); vector> rmq(floor(log2(RMQ_SIZE))+1, vector(RMQ_SIZE)); // Baut Struktur auf. O(n*log(n)) void initRMQ() { for(int i = 0, s = 1, ss = 1; s <= RMQ_SIZE; ss=s, s*=2, i++) { for(int l = 0; l + s <= RMQ_SIZE; l++) { if(i == 0) rmq[0][l] = l; else { int r = l + ss; rmq[i][l] = (data[rmq[i-1][l]] <= data[rmq[i-1][r]]) ? rmq[i-1][l] : rmq[i-1][r]; }}}} // Gibt den Index des Minimums im Intervall [l,r) zurück. O(1). int queryRMQ(int l, int r) { if(l >= r) return l; int s = floor(log2(r-l)); r = r - (1 << s); return (data[rmq[s][l]] <= data[rmq[s][r]] ? rmq[s][l] : rmq[s][r]); }