Question

int array_with_loop(vector<int> data)

{

  int i;

  data.push_back(6);

data.push_back(9);

data.push_back(2);

data.push_back(-7);

data.push_back(-4);

int result = data[0];

for ( i =0; i < data.size(); i++ )

{

if ( data[i] < result )

result = data[i];

}

return result;

}

Hand execute the following code on paper for array data, variables i and result, and then indicate the returned value of array_with_loop function .

Answer 1

data.push_back(6);

// array status: 6

data.push_back(9);

// array status: 6| 9

data.push_back(2);

// array status: 6| 9| 2

data.push_back(-7);

// array status: 6| 9| 2| -7

data.push_back(-4);

// array status: 6| 9 |2| -7| -4

int result = data[0];

result = 6

for ( i =0; i < data.size(); i++ )

{

if ( data[i] < result )

result = data[i];

}

i = 0

data[0] < result

6 < 6 false

i = 1

data[1] < result

9 < 6 false

i = 2

data[2] < result

2 < 6

result = data[2]

result = 2

i = 3

data[3] < result

-7 < 2 true

result = -7

i = 4

data[4] < result

-4 < -7 false

i =5

i > data.size() loop stops

so, variable i = 5

result = -7 ans

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