C语言求等差数列,输入首项,公差,项数答:include<stdio.h>main(){ int a,b,c,d=1,f;printf("请依次输入等差数列的首项、公差、项数:");scanf("%d%d%d",&a,&b,&c);f=a;while(d<c){a+=b;f+=a;d+=1;}printf("%d",f);//7=10-3,17=10+7//0=0+1}
c语言问题,张三,李四,王五,刘六的年龄为一等差数列,他们四人年龄相加是...答:首先,假设第一个数是x,等差为y,那么它们是x,x+y,x+y+y,x+y+y+y,它们的和为4x+6y.下面依次从1到sum/4,开始试验等差,如果是则,sum-6y必能被4整除,如果能整除 再看它们的积是否是muti,是则为正解。输出即可。include "stdio.h"void main(){ int i,j,k=0,sum,muti;printf("pl...
c语言 输出等差数列和等比数列的前n项,急用答:void geoseq(int, int, int);int main(){ int abase, gbase, delta, prod, an, gn;printf("arithmetic: ");scanf("%d%d%d", &abase, &delta, &an);arithseq(abase, delta, an);printf("geometic: ");scanf("%d%d%d", &gbase, &prod, &gn);geoseq(gbase, prod, gn);return...