Submission #334090

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Source Code Expand

#include <stdio.h>
#include <string.h>
#include <vector>
#include <map>
#include <set>


class ContestBase
{
public:
	ContestBase(){}
	virtual ~ContestBase(){}

public:
	virtual void Read() = 0;
	virtual int Exec() = 0;
	virtual void Put() = 0;
};

class Contest : public ContestBase
{
public:
	int Y;
	bool isLeap;

public:
	Contest()
	: ContestBase()
	, Y( 0 )
	, isLeap( false )
	{}

	virtual ~Contest()
	{}

public:
	virtual void Read()
	{
		scanf( "%d", &Y );
	}

	virtual int Exec()
	{
		if( 0 == ( Y % 4 ) )
		{
			if( 0 == ( Y % 100 ) )
			{
				if( 0 == ( Y % 400 ) )
				{
					isLeap = true;
				}
			}
			else
			{
				isLeap = true;
			}
		}

		return 0;
	}

	virtual void Put()
	{
		if( isLeap )
		{
			printf( "YES\n" );
		}
		else
		{
			printf( "NO\n" );
		}
	}

};


int main(int argc, char** argv)
{
	ContestBase* con = new Contest();
	con->Read();
	while( con->Exec() ){};
	con->Put();

	delete con;

	return 0;

}

Submission Info

Compile Error

./Main.cpp: In member function ‘virtual void Contest::Read()’:
./Main.cpp:39:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result