Submission #572786

#	Time	Username	Problem	Language	Result	Execution time	Memory
572786		kartel	Comparing Plants (IOI20_plants)	C++14	Compilation error	0 ms	0 KiB

plants

#include <bits/stdc++.h>
//#include "grader.cpp"
#include "plants.h"
#define pb push_back
#define sz(x) (int)x.size()
using namespace std;

const int N = 1e6 + 500;

int le[N], ri[N];

void init(int k, vector <int> r) {
    int n = sz(r);

    vector <vector <int> > g(n);
    for (int i = 0; i < n * 3; i++) {
        if (!r[i % n]) {
            le[i] = (i - 1 >= 0 ? le[i - 1] : -1);
        } else {
            le[i] = i;
        }
    }

    for (int i = n * 3 - 1; i >= 0; i--) {
        if (r[i % n]) {
            ri[i] = ri[i + 1];
        } else {
            ri[i] = i;
        }
    }
}

int compare_plants(int x, int y) {

    if (le[x + n] <= y && y <= ri[x + n]) {
        return 1;
    }
    if (le[x + n] <= y + n && y + n <= ri[x + n]) {
        return 1;
    }
    if (le[x + n] <= y + 2 * n && y + 2 * n <= ri[x + n]) {
        return 1;
    }

    if (le[y + n] <= x && x <= ri[y + n]) {
        return -1;
    }
    if (le[y + n] <= x + n && x + n <= ri[y + n]) {
        return -1;
    }
    if (le[y + n] <= x + 2 * n && x + 2 * n <= ri[y + n]) {
        return -1;
    }

    return 0;
}

Compilation message (stderr)

plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:35:16: error: 'n' was not declared in this scope
   35 |     if (le[x + n] <= y && y <= ri[x + n]) {
      |                ^
plants.cpp:38:16: error: 'n' was not declared in this scope
   38 |     if (le[x + n] <= y + n && y + n <= ri[x + n]) {
      |                ^
plants.cpp:41:16: error: 'n' was not declared in this scope
   41 |     if (le[x + n] <= y + 2 * n && y + 2 * n <= ri[x + n]) {
      |                ^
plants.cpp:45:16: error: 'n' was not declared in this scope
   45 |     if (le[y + n] <= x && x <= ri[y + n]) {
      |                ^
plants.cpp:48:16: error: 'n' was not declared in this scope
   48 |     if (le[y + n] <= x + n && x + n <= ri[y + n]) {
      |                ^
plants.cpp:51:16: error: 'n' was not declared in this scope
   51 |     if (le[y + n] <= x + 2 * n && x + 2 * n <= ri[y + n]) {
      |                ^