求 10000 以内所有高位数字小于低位数字的数,如 25,349 等该怎么编程?
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程序代码:#include <stdio.h>
int main( void )
{
for( unsigned a=0; a<=6; ++a )
for( unsigned b=a+(a!=0); b<=7; ++b )
for( unsigned c=b+(b!=0); c<=8; ++c )
for( unsigned d=c+(c!=0); d<=9; ++d )
printf( "%u\n", a*1000+b*100+c*10+d );
return 0;
}
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