c语言程序设计课后习题答案高等教育出版社

#include<>

main()

{

float x=,y=,z=;

printf("x=%f\n",x);

printf("y=%f\n",y);

printf("z=%f\n",z);

}

(1) #include<>

main()

{

int a=12,b=3;

float x=,y=;

printf("%f\n",(float)(a*b)/2);

printf("%d\n",(int)x%(int)y);

}

(2)

#include<> main()

{

int x=32,y=81,p,q;

p=x++;

q=--y;

printf("%d %d\n",p,q); printf("%d %d\n",x,y);

}

#include<>

main()

{

int x,b0,b1,b2,s;

printf("Inputx:");

scanf("%d",&x);

b2=x/100;

printf("骰子出现 2 printf("骰子出现 3 printf("骰子出现 4 printf("骰子出现 5 printf("骰子出现 6

}

(1) void Swap(int *x,int *y)

{

int *pTemp;.\n");

else if(strcmp(userInput,password)<0)

printf("Invalid password!user input

else

printf("Invalid password!user input>password...\n");

return 0;

}

#include<>

#define N 24

unsigned int CountLetter(char str[]);

int main()

{

char a[N];

printf("Input a letter:\n");

gets(a);

printf("The length of the letter is:%d\n",CountLetter(a));

return 0;

}

unsigned int CountLetter(char str[])

{

char *p=str;

int c=0,flag=0;

while(*p!='\0')

{

if(*p!=' ')

flag=1;

else if(flag==1)

{

c++;

flag=0;

}

p++;

}

return c+1;

}

#include<>

typedef struct data

{

int year;

int month;

int day;

}DATA;

typedef struct work

{

char a[14];

char b[10];

char c[6];

}WORK;

typedef struct student

{

char studentName[10];

char studentSex;

DATA birthday;

WORK profession;

}STUDENT;

int main()

{

STUDENT stu={"王刚",'M',{1991,5,19},{"信息工程系","学习人员","学生"}};

printf("stu:%2s%3c%6d/%02d/%02d%4s,%4s,%4s\n",,,

, 0;

}

#include<>

#include<>

#define N 10

typedef struct people

{

char peopleName[10];

}PEOPLE;

int main()

{

int sum1=0,sum2=0,sum3=0,sum4=0;

int i;

char name[N][N];

PEOPLE stu[5]={"zhang","li","wang"};

printf("Enter their name:\n");

for(i=0;i<10;i++)

{

gets(name[i]);

if(strcmp(name[i],stu[0].peopleName)==0)

sum1++;

else if(strcmp(name[i],stu[1].peopleName)==0) sum2++;

else if(strcmp(name[i],stu[2].peopleName)==0) sum3++;

else

sum4++;

}

printf("stu:%4s%2d\n",stu[i].peopleName,sum[j]);

printf("stu:%4s%2d\n",stu[1].peopleName,sum2);

printf("stu:%4s%2d\n",stu[2].peopleName,sum3);

printf("%2d\n",sum4);

return 0;

}