oj.uz

Submission #856741

# Submission time Handle Problem Language Result Execution time Memory
856741 2023-10-04T12:07:04 Z pomuchle Mechanical Doll (IOI18_doll) C++17
37 / 100
 81 ms 11076 KB 
#include "doll.h"

#ifdef LOCAL
//#ifdef AMOGUS
#include <cstdio>
#include <cstdlib>
namespace {

constexpr int P_MAX = 20000000;
constexpr int S_MAX = 400000;

int M, N;
std::vector<int> A;

bool answered;
int S;
std::vector<int> IC, IX, IY;

int read_int() {
  int x;
  if (scanf("%d", &x) != 1) {
    fprintf(stderr, "Error while reading input\n");
    exit(1);
  }
  return x;
}

void wrong_answer(const char *MSG) {
  printf("Wrong Answer: %s\n", MSG);
  exit(1);
}

void simulate() {
  if (S > S_MAX) {
    char str[50];
    sprintf(str, "over %d switches", S_MAX);
    wrong_answer(str);
  }
  for (int i = 0; i <= M; ++i) {
    if (!(-S <= IC[i] && IC[i] <= M)) {
      wrong_answer("wrong serial number");
    }
  }
  for (int j = 1; j <= S; ++j) {
    if (!(-S <= IX[j - 1] && IX[j - 1] <= M)) {
      wrong_answer("wrong serial number");
    }
    if (!(-S <= IY[j - 1] && IY[j - 1] <= M)) {
      wrong_answer("wrong serial number");
    }
  }

  int P = 0;
  std::vector<bool> state(S + 1, false);
  int pos = IC[0];
  int k = 0;
  FILE *file_log = fopen("log.txt", "w");
  fprintf(file_log, "0\n");
  for (;;) {
    fprintf(file_log, "%d\n", pos);
    if (pos < 0) {
      if (++P > P_MAX) {
        fclose(file_log);
        char str[50];
        sprintf(str, "over %d inversions", P_MAX);
        wrong_answer(str);
      }
      state[-pos] = !state[-pos];
      pos = state[-pos] ? IX[-(1 + pos)] : IY[-(1 + pos)];
    } else {
      if (pos == 0) {
        break;
      }
      if (k >= N) {
        fclose(file_log);
        wrong_answer("wrong motion");
      }
      if (pos != A[k++]) {
        fclose(file_log);
        wrong_answer("wrong motion");
      }
      pos = IC[pos];
    }
  }
  fclose(file_log);
  if (k != N) {
    wrong_answer("wrong motion");
  }
  for (int j = 1; j <= S; ++j) {
    if (state[j]) {
      wrong_answer("state 'Y'");
    }
  }
  printf("Accepted: %d %d\n", S, P);
}

}  // namespace

void answer(std::vector<int> C, std::vector<int> X, std::vector<int> Y) {
  if (answered) {
    wrong_answer("answered not exactly once");
  }
  answered = true;
  // check if input format is correct
  if ((int)C.size() != M + 1) {
    wrong_answer("wrong array length");
  }
  if (X.size() != Y.size()) {
    wrong_answer("wrong array length");
  }
  S = int(X.size());
  IC = C;
  IX = X;
  IY = Y;
}

int main() {
  M = read_int();
  N = read_int();
  A.resize(N);
  for (int k = 0; k < N; ++k) {
    A[k] = read_int();
  }

  answered = false;
  create_circuit(M, A);
  if (!answered) {
    wrong_answer("answered not exactly once");
  }
  FILE *file_out = fopen("out.txt", "w");
  fprintf(file_out, "%d\n", S);
  for (int i = 0; i <= M; ++i) {
    fprintf(file_out, "%d\n", IC[i]);
  }
  for (int j = 1; j <= S; ++j) {
    fprintf(file_out, "%d %d\n", IX[j - 1], IY[j - 1]);
  }
  fclose(file_out);
  simulate();
  return 0;
}
#endif

#include <ios>
#include <vector>
#include <cassert>
#define REP(i, n) for(int i=0; i<(n); ++i)
#define FOR(i, p, n) for(int i=(p); i<=(n); ++i)
#define RFOR(i, p, n) for(int i=(p); i>=(n); --i)
#define V std::vector
#define F std::function
#define sz(A) int(A.size())
#define all(A) A.begin(), A.end()
typedef long long ll;
typedef V <int> vi;
typedef V <ll> vll;
typedef V <bool> vb;

void create_circuit(int M, vi A) {
    int on=sz(A);
    while (sz(A)&(sz(A)+1))
        A.emplace_back(-1);
    A.emplace_back(0);
    int n = sz(A),comp;
    for (comp=1; comp<n; comp<<=1);
    assert(comp==n);
    int s=comp-1;
    vi X(s+1, -1),Y(s+1, -1);
    comp>>=1,--comp;
    FOR(i, 1, comp)
        X[i]=i<<1,Y[i]=(i<<1)+1;
    vi ile(s+1, 0);
    for (int i : A){
        int a=1;
        while (a<=comp){
            int b=(a<<1)+(ile[a]&1);
            ++ile[a];
            a=b;
        }
        assert(ile[a]<2);
        if (ile[a]&1)
            Y[a]=i;
        else
            X[a]=i;
        //printf("a=%d a-comp=%d\n", a, a-comp);
        ile[a]^=1;
    }
    FOR(i, 1, s)
        assert(!(ile[i]&1));
    vi C(M+1, -1); // jeszcze 0
    FOR(i, 1, comp)
        X[i]*=-1,Y[i]*=-1;
    X.erase(X.begin()),Y.erase(Y.begin());
    //assert(sz(X)<=2*on);
    answer(C, X, Y);
}

Compilation message

doll.cpp: In function 'void create_circuit(int, vi)':
doll.cpp:160:9: warning: unused variable 'on' [-Wunused-variable]
  160 |     int on=sz(A);
      |         ^~

Subtask #1
0 / 2.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 424 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 424 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 424 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
9.0 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB Output is partially correct
2 Partially correct 68 ms 9824 KB Output is partially correct
3 Partially correct 64 ms 9696 KB Output is partially correct
4 Partially correct 77 ms 10616 KB Output is partially correct

Subtask #6
28.0 / 56.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB Output is partially correct
2 Partially correct 68 ms 9824 KB Output is partially correct
3 Partially correct 64 ms 9696 KB Output is partially correct
4 Partially correct 77 ms 10616 KB Output is partially correct
5 Partially correct 81 ms 11076 KB Output is partially correct
6 Partially correct 73 ms 10820 KB Output is partially correct
7 Partially correct 69 ms 10816 KB Output is partially correct
8 Partially correct 76 ms 10520 KB Output is partially correct
9 Partially correct 60 ms 9824 KB Output is partially correct
10 Partially correct 69 ms 10564 KB Output is partially correct
11 Partially correct 68 ms 10564 KB Output is partially correct
12 Partially correct 62 ms 9808 KB Output is partially correct
13 Partially correct 81 ms 9816 KB Output is partially correct
14 Partially correct 68 ms 9812 KB Output is partially correct
15 Partially correct 67 ms 10064 KB Output is partially correct
16 Partially correct 2 ms 604 KB Output is partially correct
17 Correct 34 ms 6536 KB Output is correct
18 Partially correct 62 ms 9812 KB Output is partially correct
19 Partially correct 63 ms 9624 KB Output is partially correct
20 Partially correct 67 ms 10564 KB Output is partially correct
21 Partially correct 68 ms 10636 KB Output is partially correct
22 Partially correct 75 ms 10680 KB Output is partially correct