單招考試C語言技能題目

題目1：分別統(tǒng)計字符串中字母、數(shù)字、空格和其他字符出現(xiàn)的次數(shù)（字符長度小于80//全局變量，a用于保存字母個數(shù)、num用于保存數(shù)字個數(shù)//b用于保存空格個數(shù)、other用于保存其他字符字數(shù)inta=0,num=0,b=0,other=0;voidcount(charc[]){/**********Program**********//**********End**********/}voidmain(){//voidcount(charc[]);charch[80];printf("inputstring:");gets(ch);count(ch);printf("a=%dnum=%db=%dother=%d\n",a,num,b,other);wwjt();}wwjt(){FILE*IN,*OUT;inti;charsIN[80];IN=fopen("in.dat","r");if(IN==NULL){printf("PleaseVerifyTheCurrerntDir..ItMayBeChanged");}OUT=fopen("out.dat","w");if(OUT==NULL){printf("PleaseVerifyTheCurrentDir..ItMayBeChanged");}for(i=0;i<5;i++){a=0;num=0;b=0;other=0;fscanf(IN,"%s",&sIN);count(sIN);fprintf(OUT,"%d\n",a);fprintf(OUT,"%d\n",num);fprintf(OUT,"%d\n",b);fprintf(OUT,"%d\n",other);}fclose(IN);fclose(OUT);}答案：inti;for(i=0;c[i]!='\0';i++)if((c[i]>='A'&&c[i]<='Z')||(c[i]>='a'&&c[i]<='z'))a=a+1;elseif(c[i]>='0'&&c[i]<='9')num=num+1;elseif(c[i]=='')b=b+1;elseother=other+1;題目2：函數(shù)gcd()計算整型數(shù)組a中相鄰兩元素的最大公約數(shù)，最小公倍數(shù)，其中最大公約數(shù)存入數(shù)組b中，最小公倍數(shù)存入數(shù)組c中。注意：請勿改動主函數(shù)main()中的其他內(nèi)容。#include<stdio.h>#include<conio.h>voidgcd(inta[],intn,intb[],intc[]){inti,x,y,z;/***********SPACE***********/for(i=0;i<【?】;i++){x=a[i];y=a[i+1];while(z=x%y){x=y;y=z;}b[i]=y;/***********SPACE***********/c[i]=a[i]*a[i+1]/【?】;}}intmain(){inta[5]={8,12,5,7,14};intb[4],c[4];inti;gcd(a,5,b,c);for(i=0;i<5;i++)printf("%d\t",a[i]);printf("\n");for(i=0;i<4;i++)printf("%d\t",b[i]);printf("\n");for(i=0;i<4;i++)prin