Monistus

input/code.cpp: In function 'int main()':
input/code.cpp:36:10: warning: ignoring return value of 'ssize_t write(int, const void*, size_t)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     write(STDOUT_FILENO, oc, 500000 + o - oc);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>

typedef unsigned char u1;
typedef uint64_t u8;

int main() {

  u1 i[500001];
  u1 o[500000];

  uint64_t il = read(STDIN_FILENO, i, 500001);

  u1 *oc = o + 500000 - 1;
  for (u1 *ic = i + il - 2; ic >= i; ic--) {
    if (*ic - (u1)'0' > 9) {
      *oc = *ic;
      oc--;
    } else {
      u8 l = *ic - (u1)'0';
      for (u1 *icc = ic + l; icc > ic; icc--) {
        if (*icc - (u1)'0' > 9) {
          *oc = *icc;
          oc--;
        } else {
          u8 l2 = *icc - (u1)'0';
          oc -= l2 - 1;
          memcpy(oc, oc + l2, l2);
          oc -= 1;
        }
      }
    }
  }
    write(STDOUT_FILENO, oc, 500000 + o - oc);
    printf("\n");

  return 0;
}

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

Test 5

Group: 1, 2

Verdict: WRONG ANSWER

Test 6

Group: 1, 2

Verdict: WRONG ANSWER

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: WRONG ANSWER

Test 12

Group: 2

Verdict: WRONG ANSWER

Test 13

Group: 2

Verdict: WRONG ANSWER

Test 14

Group: 2

Verdict: WRONG ANSWER