Arrays_draft - Single and Multidimensional Arrays Accident...

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Single and Multidimensional Arrays
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Accident Problem Each year the Department of Traffic Accidents receives accident count reports from a number of cities and towns across the country. Given details of ‘n’ days, develop an algorithm and write a program to determine the average number of accidents and for each day, print the difference between the number of accidents on that day and average. For example, if the number of accidents is 5 and the values are 10, 12, 15, 13, 5 then average is 11 and the difference of values are 1, 1, 4, 2, 6
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Accident problem Input Output Logic Involved Value of ‘n’, ‘n’ numbers Average and ‘n’ values that is the difference between average and value Find average and difference
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Algorithm 1. Read the value of ‘n’ 2. Read the number of accidents happened in ‘n’ days 3. Find average 4. For each value print the difference between average and the value
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New Stuff... We can find the difference between average and the number of accidents on a particular day only after reading all numbers from the user So data has to be stored Same type of data is to be stored Number of items not known prior Best choice would be using arrays in C Array - Can store a fixed-size sequential collection of elements of the same type
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Arrays in C Consist of contiguous memory locations lowest address corresponds to the first element highest address to the last element Array indices start with zero The elements have indices from 0 to ‘n-1’ Similar to list in Python but homogenous
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Declaration of Arrays in C type arrayName [ arraySize ]; double balance[10]; Initializing Arrays double balance[] = {1000.0, 2.0, 3.4, 7.0, 50.0}; (or) double balance[5] = {1000.0, 2.0, 3.4, 7.0, 50.0};
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Difference between Initialization and Assignment Assignment int a; a = 5; Intialization int a = 5;
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  • Spring '16
  • dncj ncnd
  • Array, ASCII, D Arrays, Tic Tac Toe Board

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