C语言:求数列2,-4,6,-8,10,-12,...,前100项之和及第100项的值,咋编程...答:代码文本:include "stdio.h"int main(int argc,char *argv[]){ int n,i,s;for(s=i=0,n=2;i<100;i++,n+=2)s += i&1 ? -n : n;printf("The sum are the %d\nThe last item is %d\n",s,(i&1 ? n-2 : 2-n));return 0;} ...
C语言编程中,有100匹马,拉100担货,所有马都用上,1匹大马拉3担,1匹中等...答:int a,b;for(a=1;a<33;a++)for (b=1;b<49;b++)if (5*a+3*b==100)printf(" 大马=%d,中马=%d,小马=%d\n",a,b,100-a-b);