Submission #976363

#	Time	Username	Problem	Language	Result	Execution time	Memory
976363		biank	cmp (balkan11_cmp)	C++14	Compilation error	0 ms	0 KiB

cmp

#include <bits/stdc++.h>
#include "cmp.h"

const int MAX_N = 4095;

vector<int> offset;

void remember(int n) {
    offset[0] = 0;
    for (int i = 1; i < 6; i++) {
        offset[i] = offset[i - 1] + MAX_N >> (2 * i) + 1;
    }
    for (int i = 0; i < 6; i++) {
        bit_set(offset[i] + n >> (2 * i));
    }
}

int compare(int b) {
    int l = -1, r = 6;
    while (l + 1 < r) {
        int m = (l + r) / 2;
        if (bit_get(offset[m] + 1 + b >> (2 * m))) {
            r = m;
        } else {
            l = m;
        }
    }
    if (l == -1) return 0;
    int digit = (b >> (2 * l)) & 3;
    if (digit == 0) return -1;
    if (digit == 3) return 1;
    if (digit == 1) {
        if (bit_get(offset[l] + 4 * (b >> (2 * r))) return 1;
        else return -1;
    }
    if (digit == 2) {
        if (bit_get(offset[l] + 4 * (b >> (2 * r)) + 3)) return -1;
        else return 1;
    }
    assert(false);
}

Compilation message (stderr)

cmp.cpp:6:1: error: 'vector' does not name a type
    6 | vector<int> offset;
      | ^~~~~~
cmp.cpp: In function 'void remember(int)':
cmp.cpp:9:5: error: 'offset' was not declared in this scope; did you mean 'off_t'?
    9 |     offset[0] = 0;
      |     ^~~~~~
      |     off_t
cmp.cpp: In function 'int compare(int)':
cmp.cpp:22:21: error: 'offset' was not declared in this scope; did you mean 'off_t'?
   22 |         if (bit_get(offset[m] + 1 + b >> (2 * m))) {
      |                     ^~~~~~
      |                     off_t
cmp.cpp:33:13: warning: init-statement in selection statements only available with '-std=c++17' or '-std=gnu++17'
   33 |         if (bit_get(offset[l] + 4 * (b >> (2 * r))) return 1;
      |             ^~~~~~~
cmp.cpp:33:21: error: 'offset' was not declared in this scope; did you mean 'off_t'?
   33 |         if (bit_get(offset[l] + 4 * (b >> (2 * r))) return 1;
      |                     ^~~~~~
      |                     off_t
cmp.cpp:34:9: error: expected primary-expression before 'else'
   34 |         else return -1;
      |         ^~~~
cmp.cpp:33:62: error: expected ')' before 'else'
   33 |         if (bit_get(offset[l] + 4 * (b >> (2 * r))) return 1;
      |            ~                                                 ^
      |                                                              )
   34 |         else return -1;
      |         ~~~~                                                  
cmp.cpp:37:21: error: 'offset' was not declared in this scope; did you mean 'off_t'?
   37 |         if (bit_get(offset[l] + 4 * (b >> (2 * r)) + 3)) return -1;
      |                     ^~~~~~
      |                     off_t