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问题：【一个四位数分别与1,2,3,4,5,.19,20相乘,所得的积各个数位上数的和相同.请写出这个四位数.儿子四年级的作业,我一个也写不出来】
答案：↓↓↓ 邓聚龙的回答： 网友采纳 1:0 2:99 3:198 4:297 5:396 6:495 7:594 8:693 9:792 10:990 11:999 12:1188 13:1485 14:1980 15:1998 16:2475 17:2970 18:2997 19:3960 20:3996 21:4950 22:4995 23:5940 24:5994 25:6930 26:6993 27:7920 28:7992 29:8991 30:9900 31:9990 32:9999 Pressanykeytocontinue #include sum(intx){ ints=0; while(x){ s+=x%10; x/=10; } returns; } voidmain(){ intx,y,s,n=1; for(x=0;x | 
