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下面程序的运行结果是________。#includeint main( ){int f1( int x , int y ) ;int a = 11 , b = 12 ,c ;c = f1( a , b ) ;printf( "a=%d,b=%d,c=%d\n" , a , b ,c ) ;return 0 ;}int f1( int x , int y ){int f2( int , int ) ;int c ;x = x * 2 ;y = y * 2 ;c = f2( x , y ) ;return c*2 ;}int f2( int a , int b ){int c ;c = ( a + b ) % 3 ;return c ;}

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