Skip 2 Index In the body of For Loop VS While Loop ( Python VS C )-CodePudding

In the first code below (Using for loop) When I want to skip 2 index by increasing the index within the body of for loop, it ignores i = i 2 and updates the index only with for i in range (len(c)) phrase, while in the c we could do this in th e body of for loop by for (int i = 0 ; i <sizeof(c) ;i ){i = 2;}. Is there anyway to implement this using a for loop (by correcting first code) or I have to use a while loop (second code)?

First Code (For loop)

def jumpingOnClouds(c):

    count_jumps = 0 
    
    for i in range (len(c)):       

        if (i 2 <len(c) and c[i] == 0 and c[i 2] ==0):
            i = i 2
            count_jumps =1#It doesnt let me to update i in the while loop
            
        elif (i 1 <len(c) and c[i] == 0 and c[i 1] ==0):
            
            count_jumps =1
        
        else:
            pass    
        
    return(count_jumps)
  
c = [0, 0, 0, 1, 0, 0]
   
jumpingOnClouds(c)

Second Code (While Loop)

def jumpingOnClouds(c):

    count_jumps = 0 
    
    i = 0
    
    while( i < len(c)):       

        if (i 2 <len(c) and c[i] == 0 and c[i 2] ==0):
            i = i 2
            count_jumps =1
            
        elif (i 1 <len(c) and c[i] == 0 and c[i 1] ==0):
            
            count_jumps =1
            i = i 1
        
        else:
            i = i 1   
        
    return(count_jumps)
c = [0, 0, 0, 1, 0, 0]
   
jumpingOnClouds(c)

CodePudding user response：

You can use continue to skip. You'll just need a condition that will be True.

def jumpingOnClouds(c):
    skipCondition = False
    count_jumps = 0 
    
    for i in range (len(c)):       
        if skipCondition:
            skipCondition = False
            continue
        if (i 2 <len(c) and c[i] == 0 and c[i 2] ==0):
            count_jumps =1#It doesnt let me to update i in the while loop
            skipCondition = True
            continue
            
        elif (i 1 <len(c) and c[i] == 0 and c[i 1] ==0):
            
            count_jumps =1
        
        else:
            pass    
        
    return(count_jumps)
  
c = [0, 0, 0, 1, 0, 0]
   
jumpingOnClouds(c)

Putting continue will continue iterating, but before that, it will make the skipCondition = True. The next iteration, skipCondition will be True, so you will skip again, but setting skipCondition back to False