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  • Jam's math problem

    Problem Description
    Jam has a math problem. He just learned factorization.
    He is trying to factorize ax2+bx+c into the form of pqx2+(qk+mp)x+km=(px+k)(qx+m).
    He could only solve the problem in which p,q,m,k are positive numbers.
    Please help him determine whether the expression could be factorized with p,q,m,k being postive.
     

    Input
    The first line is a number T, means there are T(1T100) cases 

    Each case has one line,the line has 3 numbers a,b,c(1a,b,c100000000)
     

    Output
    You should output the "YES" or "NO".
     

    Sample Input
    2 1 6 5 1 6 4
     

    Sample Output
    YES

    NO

    求a*x^2+b*x+c能否分解因式 暴力循环查找

    pqx2+(qk+mp)x+km=(px+k)(qx+m)找出符合的p q n m

    #include<cstdio>
    int main()
    {
    	int t;
    	scanf("%d",&t);	
    	long long a,b,c;
    	while(t--)
    	{
    		scanf("%lld%lld%lld",&a,&b,&c);
    		int flog=0;
    		for(long long i=1;i*i<=a;i++)
    		{
    			if(a%i!=0)
    			continue;
    			for(long long j=1;j*j<=c;j++)
    			{
    					if(c%j!=0)
    			        continue;
    				if(b==((i*j)+(a/i*c/j))||b==(i*(c/j)+j*(a/i)))
    				{
    							flog=1;
    							break;
    				}
    		
    			}
    			if(flog==1)
    			break;
    		}
    		if(flog==0)
    		{
    				printf("NO
    ");
    		}
    		else
    		{
    				printf("YES
    ");	
    		}
    
    	}
    	return 0;
     } 



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  • 原文地址:https://www.cnblogs.com/kingjordan/p/12027131.html
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