Submission #1105728

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1105728	2024-10-27 13:06:18	azberjibiou	Counting Mushrooms (IOI20_mushrooms)	C++17	Compilation error	0 ms	0 KiB

mushrooms

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#include "mushrooms.h"
#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define pb push_back
#define lb lower_bound
#define gibon ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define pii pair<int, int>
#define pll pair<ll, ll>
typedef long long ll;
using namespace std;
const int mxN=505;
const int mxM=2200005;
const int mxK=61;
const int MOD=1e9+7;
const ll INF=1e18;
const int C=80;
vector <int> A, B;
int cntA;
int idx=1;
void check_one(){
    int val=use_machine(vector <int>{0, idx});
    if(val==0) A.push_back(idx);
    else B.push_back(idx);
    idx++;
}
void check_two(){
    assert(A.size()>=2 || B.size()>=2);
    bool swp=false;
 
 
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Compilation message (stderr)

mushrooms.cpp: In function 'void check_C()':
mushrooms.cpp:50:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(int i=0;i<A.size();i++){
      |                 ~^~~~~~~~~
mushrooms.cpp: In function 'void check_end(int)':
mushrooms.cpp:73:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |     for(int i=0;i<A.size();i++){
      |                 ~^~~~~~~~~
mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:99:17: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
   99 |         if(n-idx<=max(A.size(), B.size())) check_end(n);
      |            ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
mushrooms.cpp:100:38: error: call of overloaded 'abs(std::vector<int>::size_type)' is ambiguous
  100 |         else if(abs(A.size()-B.size())<=5 && A.size()<80) check_two();
      |                                      ^
In file included from /usr/include/c++/10/bits/std_abs.h:38,
                 from /usr/include/c++/10/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from mushrooms.cpp:2:
/usr/include/stdlib.h:840:12: note: candidate: 'int abs(int)'
  840 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/10/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from mushrooms.cpp:2:
/usr/include/c++/10/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/10/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/10/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/10/bits/std_abs.h:61:3: note: candidate: 'long long int std::abs(long long int)'
   61 |   abs(long long __x) { return __builtin_llabs (__x); }
      |   ^~~
/usr/include/c++/10/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~