Submission #301572

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
301572	2020-09-18 04:46:29	kevinsogo	Comparing Plants (IOI20_plants)	C++17	100 / 100	1593 ms	137536 KiB

plants

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#include "plants.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int mod(int a, int n) {
    if ((a %= n) < 0) a += n;
    return a;
}
int n, k;
int dist(int i, int j) {
    return mod(j - i - 1, n) + 1;
}
struct MinTree {
    int i, j;
    int m, a = 0;
    MinTree *l, *r;
    MinTree(const vector<int>& v, int i, int j): i(i), j(j) {
        if (j - i == 1) {
            m = v[i];
            l = r = nullptr;
        } else {
            int k = i + j >> 1;
            l = new MinTree(v, i, k);
            r = new MinTree(v, k, j);
            m = min(l->m, r->m);
        }
    }
 
 
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Compilation message (stderr)

plants.cpp: In constructor 'MinTree::MinTree(const std::vector<int>&, int, int)':
plants.cpp:25:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |             int k = i + j >> 1;
      |                     ~~^~~
plants.cpp: In constructor 'MaxTree::MaxTree(int, int, int)':
plants.cpp:98:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   98 |             int k = i + j >> 1;
      |                     ~~^~~
plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:186:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  186 |     for (int x2 = 0, x1 = cands.size() - 1; x2 < cands.size(); x1 = x2++) {
      |                                             ~~~^~~~~~~~~~~~~~
plants.cpp:212:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  212 |             for (int x1 = 0, x2 = 1; x2 < bagos.size(); x1++, x2++) {
      |                                      ~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 13 / 13
• Subtask 4: 17 / 17
• Subtask 5: 11 / 11
• Subtask 6: 15 / 15
• Subtask 7: 25 / 25