Submission #483159

#	Time	Username	Problem	Language	Result	Execution time	Memory
483159		KazamaHoang	Sirni (COCI17_sirni)	C++14	Compilation error	0 ms	0 KiB

sirni

#include <bits/stdc++.h>
#define INF 1000000000
#define M 1000000007
#define ll long long
#define MAX 10000001
using namespace std;

int a[MAX],m[MAX];
int par[MAX],rank[MAX];

int getroot(int x){
	if (par[x]==x) return x;
	else return getroot(par[x]);
}

int union_(int x,int y){
	int rx = getroot(x);
	int ry = getroot(y);
	if (rx==ry) return 0;
	if (rank[rx]>rank[ry]){
		par[ry] = rx;
		rank[rx]++;
	}
	else{
		par[rx] = ry;
		rank[ry]++;
	}
	return 0;
}

int main(){
	int n;
	cin >> n;
	for (int i=0;i<n;i++){
		int x;scanf("%d",&x);
		m[x] = 1;
	}
	n = 0;
	for (int i=1;i<MAX;i++){
		if (m[i]){
			a[n++] = i;
			par[i] = i;
		}
	}
	int groups = n;
	int md = 0;
	ll sum = 0;
	while(groups!=1){
		for (int i=0;i<n;i++){
			for (int j=a[i]+md;j<MAX;j+=a[i]){
				if (m[j] && getroot(a[i])!=getroot(j)){
					union_(j,a[i]);
					sum+=md;
					groups--;
				}
			}
		}
		md++;
	}
	cout << sum << endl;
	return 0;
}

Compilation message (stderr)

sirni.cpp: In function 'int union_(int, int)':
sirni.cpp:20:6: error: reference to 'rank' is ambiguous
   20 |  if (rank[rx]>rank[ry]){
      |      ^~~~
In file included from /usr/include/c++/10/bits/move.h:57,
                 from /usr/include/c++/10/bits/nested_exception.h:40,
                 from /usr/include/c++/10/exception:148,
                 from /usr/include/c++/10/ios:39,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sirni.cpp:1:
/usr/include/c++/10/type_traits:1359:12: note: candidates are: 'template<class> struct std::rank'
 1359 |     struct rank
      |            ^~~~
sirni.cpp:9:14: note:                 'int rank [10000001]'
    9 | int par[MAX],rank[MAX];
      |              ^~~~
sirni.cpp:20:15: error: reference to 'rank' is ambiguous
   20 |  if (rank[rx]>rank[ry]){
      |               ^~~~
In file included from /usr/include/c++/10/bits/move.h:57,
                 from /usr/include/c++/10/bits/nested_exception.h:40,
                 from /usr/include/c++/10/exception:148,
                 from /usr/include/c++/10/ios:39,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sirni.cpp:1:
/usr/include/c++/10/type_traits:1359:12: note: candidates are: 'template<class> struct std::rank'
 1359 |     struct rank
      |            ^~~~
sirni.cpp:9:14: note:                 'int rank [10000001]'
    9 | int par[MAX],rank[MAX];
      |              ^~~~
sirni.cpp:22:3: error: reference to 'rank' is ambiguous
   22 |   rank[rx]++;
      |   ^~~~
In file included from /usr/include/c++/10/bits/move.h:57,
                 from /usr/include/c++/10/bits/nested_exception.h:40,
                 from /usr/include/c++/10/exception:148,
                 from /usr/include/c++/10/ios:39,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sirni.cpp:1:
/usr/include/c++/10/type_traits:1359:12: note: candidates are: 'template<class> struct std::rank'
 1359 |     struct rank
      |            ^~~~
sirni.cpp:9:14: note:                 'int rank [10000001]'
    9 | int par[MAX],rank[MAX];
      |              ^~~~
sirni.cpp:26:3: error: reference to 'rank' is ambiguous
   26 |   rank[ry]++;
      |   ^~~~
In file included from /usr/include/c++/10/bits/move.h:57,
                 from /usr/include/c++/10/bits/nested_exception.h:40,
                 from /usr/include/c++/10/exception:148,
                 from /usr/include/c++/10/ios:39,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sirni.cpp:1:
/usr/include/c++/10/type_traits:1359:12: note: candidates are: 'template<class> struct std::rank'
 1359 |     struct rank
      |            ^~~~
sirni.cpp:9:14: note:                 'int rank [10000001]'
    9 | int par[MAX],rank[MAX];
      |              ^~~~
sirni.cpp: In function 'int main()':
sirni.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |   int x;scanf("%d",&x);
      |         ~~~~~^~~~~~~~~