public void run() { // Scanner sc = new Scanner(System.in); Scanner sc = new Scanner(); StringBuilder sb = new StringBuilder(1000000); // System.setOut(new PrintStream(new BufferedOutputStream(System.out))); final int N = sc.nextInt(); final int M = sc.nextInt(); final int K = (int) floor(sqrt(N)); final int[] A = new int[N + 1]; A[0] = 1; for (int i = 1; i <= N; i++) A[i] = sc.nextInt(); final int[] next = new int[N + 1]; final int[] step = new int[N + 1]; final int[] last = new int[N + 1]; for (int i = N; i > 0; i--) { int j = i + A[i]; if (j > N || j / K > i / K) { last[i] = i; step[i] = 1; next[i] = j; } else { last[i] = last[j]; step[i] = step[j] + 1; next[i] = next[j]; } } for (int t = 0; t < M; t++) if (sc.nextInt() == 1) { int i = sc.nextInt(); int j = 0; int k = 0; while (i <= N) { j += step[i]; k = last[i]; i = next[i]; } sb.append(k).append(' ').append(j).append('\n'); // System.out.println(k + " " + j); } else { int k = sc.nextInt(); int b = k / K * K; A[k] = sc.nextInt(); for (int i = min(b + K - 1, N); i >= b; i--) { int j = i + A[i]; if (j > N || j / K > i / K) { last[i] = i; step[i] = 1; next[i] = j; } else { last[i] = last[j]; step[i] = step[j] + 1; next[i] = next[j]; } } } // System.out.flush(); System.out.print(sb); }
@Override public String toString() { StringBuilder builder = new StringBuilder(size() * 3); builder.append('[').append(array[start]); for (int i = start + 1; i < end; i++) { builder.append(", ").append(array[i]); } return builder.append(']').toString(); }
/** * Returns a string containing the supplied {@code char} values separated by {@code separator}. * For example, {@code join("-", '1', '2', '3')} returns the string {@code "1-2-3"}. * * @param separator the text that should appear between consecutive values in the resulting string * (but not at the start or end) * @param array an array of {@code char} values, possibly empty */ public static String join(String separator, char... array) { notNull(separator); int len = array.length; if (len == 0) { return ""; } StringBuilder builder = new StringBuilder(len + separator.length() * (len - 1)); builder.append(array[0]); for (int i = 1; i < len; i++) { builder.append(separator).append(array[i]); } return builder.toString(); }