Chapter V] [C Primer Plus programming exercises

1、

#include <stdio.h> 
#include < String >
 #define H_PER_M 60
 int main () 
{ 
    int min, hour; 
    the printf ( " Enter the number of minutes: " ); 
    Scanf ( " % D " , & min); 
    getchar ( ); 
    the while (min> 0 ) { 
        hour = min / H_PER_M; 
        min = min% H_PER_M; 
        the printf ( " total% d hours,% d minutes \ n- " , hour, min); 
        the printf ( " Please continue to enter \ n- ");
        scanf("%d", &min);
        getchar();
    }
    printf("结束");
    return 0;
}

 

 2、

#include <stdio.h> 
#include < String >
 #define H_PER_M 60
 int main () 
{ 
    int A, I; 
    the printf ( " Please enter an integer: " ); 
    Scanf ( " % D " , & I); 
    getchar ( ); 
    A = I + 10 ; 
    the printf ( " % D " , I); // this is to let the asterisk is present between the two numbers only 
    the while (I < A) { 
        the printf ( " * " ); 
        I + + ; 
        printf ("%d", i);
        
    }
    getchar();
    return 0;
}

 

 

3、

 

#include <stdio.h>
#include <string>
int main()
{
    int weeks,days,day;
    printf("请输入工作天数：");
    scanf("%d", &days);
    getchar();
    weeks = days/7;
    day = days % 7;
    printf("%d days are %d weeks, %d days",days,weeks,day);
    getchar();
    return 0;
}

 

 4、