c语言_期末复习题答案 6页

一、选择题：1．A2．CD3．D4．B5．B6．B7．A8．C9．D10．A11．A12．B13．D14．C15．C16．D17．B18．D19．C20．B21．A22．D23．A24．C25．A26．C27．C28．B29．A30．A31．D32．C33．A34．D35．C36．A37．C38．A39．C40．A41．D42．B43．B44．C45．D46．A47．B48．A49．C50．C51．D52．A53．D54．B55．D56．C57．C58．D59．D60．C61．C62．D63．B64．D65．C二、填空题：1.scanf(“%f”,&x);x>=0scanf(“%f”,&x);2.i<=3或i<4i==0||i==3||j==0||j==5_printf(“n”)3.b=i==0？0：i-1或者i==0?b=0:b=i-14.315.max=q6.i%4==07.88.y*y+x*x9.110.c>=‘a’&&c<=‘z’11.67，D12.713.014.7415.22,1316.717.1818.5，419.3,620.521.1122.723.1024.78625.3226.1027.2，028.i<=10029.a>b30.a[i][j],j==331.“%d*%d=%d”,j,k,j*k32.71n1.2143344535.1536．2237.‘a’==m‘c’==m‘d’==m38.ch>=‘A’&&ch<=‘Z’ch=ch-32;39.b=i==0？0：i-140.3141.c!=‘n’c>=‘0&&c<=‘9’42.i==ja[i][i]或a[j][j]或a[i][j]或a[j][i]43.x*x*x+y*y+z_5判断题：1~10√××√√××√××11~25√×√×××√×××√×√×√26~35√√×××××√√×36~45√××√√×√√××6编程题1.2.3.4.#includevoidmain(){inta,b,c,max;scanf("%d,%d,%d",&a,&b,&c);max=a;if(maxvoidmain(){inta[10],max,i,j;for(i=0;i<10;i++)scanf("%d",&a[i]);max=a[0];j=0;for(i=0;i<10;i++)if(a[i]>max){max=a[i];j=i;}nprintf("Themaximum%disat%d.",max,j);}6.#includevoidmain(){intyueshu(intm,intn);intbeishu(intk,inth,intl);intx,y,c,d;scanf("%d,%d",&x,&y);c=yueshu(x,y);d=beishu(x,y,c);printf("最大公约数是%dn",c);printf("最小公倍数是%dn",d);}intyueshu(intm,intn){inta;a=m%n;while(a!=0){m=n;n=a;a=m%n;}return(n);}intbeishu(intk,inth,intl){return(k*h/l);}7.#includevoidmain(){inta[10],max,i;for(i=0;i<10;i++)scanf(“%d”,&a[i]);max=a[0];for(i=0;i<10;i++)if(maxmain(){charsex;floatscore;scanf("%c,%f",&sex,&score);if(sex=='M')if(score<=15.6)printf("合格");elseprintf("不合格");elseif(sex=='F')if(score<=18.2)printf("合格");elseprintf("不合格");}12.#includemain(){intsum=0,t=-1,i=0,n;scanf(“%d”,&n);while(i