Clock Math

Discussions Toph Problems
1

Given a time (hours as H and minutes as M), determine the smaller angle between the two hands of a c…

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If you need help solving this problem, mention your approach and ask specific questions. Please avoid sharing your code and asking the Community to figure out “what’s wrong”.

2

Why I’m getting wrong answer???

#include <bits/stdc++.h>

using namespace std;

double clockMath(int h, int m){
    
    return (double)(360 - ((30 * h) - (5.5 * m)));  
}

int main(){
    
    int h, m;
    
    cin >> h >> m;
    
    double result = clockMath(h, m);
    printf("%.7lf\n", result);
    
    return 0;
}
3

@tariqul You need to “determine the smaller angle between the two hands”.

4

what is the problem with this code

#include<stdio.h>
int main()
{
    int hr,min;
    float x,y;
    scanf("%d %d", &hr , &min );
    x = min/(float)5;
    if(x>hr)
        {
            y = ((x-hr)*30) - (min/(float)2);
            printf("%0.7f",y);
        }

            if(x<hr)
        {
            y = ((x+12-hr)*30) - (min/(float)2);
            printf("%0.7f",y);
        }
}
5

what if H=3 & M=15 ??
your program is not going to work then.

1 Like
6

when H=3 and M=15 maybe 7.5 is the result.

8

DO NOT paste accepted codes in the community. Remove this kind of posts from everywhere.

9

#include <stdio.h>

int main()
{
int H, M;

double a;

scanf("%d %d", &H, &M);

a = (double) H - (M/5);

if(a < 0) {
	a = (a*(-1)*30) - 0.5*M;
}

else a = a*30 + 0.5*M;

if(a > 180) {
	printf("%.7lf\n", 360-a);
}

else printf("%.7lf\n", a);

return 0;

}

What is the problem in this code?
It is getting wrong answer in test case 6.
Can anyone help me?

10 
#include <stdio.h>
int main()
{	
	double angle,i,n,k,m,h;
	scanf("%lf",&h);
	scanf("%lf",&m);
	
	angle=(11*m/2)-30*h;
	i=360-(-1*angle);
	if(angle<0 && angle>-180 && m<=60 && h<=12){
	printf("%lf\n",angle+(-2*angle));
		}
		else if(angle<-180 && m<=60 && h<=12){
			printf("%lf",i);
			}
			else if(m<=60 && h<=12){
				printf("%lf",angle);
				}	
	return 0;
}

/Why does this source get stuck in test case 4?/

12

Python Solution

[REDACTED]
13

Python Solution

[REDACTED]
14 
def mainangle(h, m):
   
    if h < 0 or m < 0 or h > 12 or m > 60:
        print('Wrong input')

    if h == 12:
        h = 0
    if m == 60:
        m = 0

    hour_angle = 0.5 * (h * 60 + m)
    minute_angle = 6 * m
    angle = abs(hour_angle - minute_angle)
    angle = min(360 - angle, angle)
    if angle >= 180:
        angle = (360-angle)
    return angle


H = int(input())
M = int(input())
print('Angle', mainangle(H, M), 'degree')

what wrong this code?

16

Could someone please help me out with this code? I don’t know why it isn’t working.

time = input("Enter the time")
hours = int(time[0:2])
minutes = int(time[-2:])
if hours == 0 and minutes == 0:
    Answer = 0 
else:
    HoursAngle1 = hours * 30
    HoursAngle2 = minutes * 0.5
    HoursAngle = HoursAngle1 + HoursAngle2
    MinuteAngle = minutes * 6
    if HoursAngle > MinuteAngle:
        Answer = (HoursAngle - MinuteAngle)
    else:
        Answer = (MinuteAngle - HoursAngle)
        
    if Answer > 180:
        Answer = 360 -((HoursAngle - MinuteAngle))
print("%.7f" % Answer, "degrees")