Submission #304023

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
304023	2020-09-21 01:05:52	Fdg	Counting Mushrooms (IOI20_mushrooms)	C++14	Compilation error	0 ms	0 KiB

mushrooms

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#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
// #include "mushrooms.h"
using namespace std;
const int VAL = 141;
vector<int> a, b;
int count_mushrooms(int n) {
  srand(time(NULL));
  vector<int> v;
  for (int i = 1; i < n; ++i)
    v.push_back(i);
  random_shuffle(v.begin(), v.end());
  int ans = 0, pos = 0;
  a.push_back(0);
  while (pos < v.size()/*a.size() < VAL || b.size() < VAL*/) {
    if (a.size() > 1) {
      vector<int> arr = {a[0]};
      if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      arr.push_back(a[1]); 
      if (pos < v.size()) arr.push_back(v[pos]), ++pos;
 
 
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Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:24:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   while (pos < v.size()/*a.size() < VAL || b.size() < VAL*/) {
      |          ~~~~^~~~~~~~~~
mushrooms.cpp:27:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |       if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      |           ~~~~^~~~~~~~~~
mushrooms.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |       if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      |           ~~~~^~~~~~~~~~
mushrooms.cpp:31:17: error: 'use_machine' was not declared in this scope
   31 |       int ret = use_machine(arr);
      |                 ^~~~~~~~~~~
mushrooms.cpp:44:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |       if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      |           ~~~~^~~~~~~~~~
mushrooms.cpp:46:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |       if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      |           ~~~~^~~~~~~~~~
mushrooms.cpp:48:17: error: 'use_machine' was not declared in this scope
   48 |       int ret = use_machine(arr);
      |                 ^~~~~~~~~~~
mushrooms.cpp:61:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |       if (pos < v.size()) arr.push_back(v[pos]), ++pos;
      |           ~~~~^~~~~~~~~~
mushrooms.cpp:63:17: error: 'use_machine' was not declared in this scope
   63 |       int ret = use_machine(arr);
      |                 ^~~~~~~~~~~