This is for C++:   Assume that you have a file that contains the weekly average prices for a gallon of gas in the United States for the past 3 years.  The data is stored in the file as records.  Each record contains the average price of a gallon of gas on a specific date.  Each record contains the following fields: The month, stored as an integer.  January = 1, February = 2, etc. The day of the month, stored as an integer. The year, stored as an integer. The average price of a gallon of gas on the specified date, stored as a real number, rounded to 3 decimal places. Design a program that reads the file and displays the lowest and highest gas prices, as well as the dates for those prices.

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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This is for C++:

 

Assume that you have a file that contains the weekly average prices for a gallon of gas in the United States for the past 3 years.  The data is stored in the file as records.  Each record contains the average price of a gallon of gas on a specific date.  Each record contains the following fields:

  • The month, stored as an integer.  January = 1, February = 2, etc.
  • The day of the month, stored as an integer.
  • The year, stored as an integer.
  • The average price of a gallon of gas on the specified date, stored as a real number, rounded to 3 decimal places.

Design a program that reads the file and displays the lowest and highest gas prices, as well as the dates for those prices.  

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I need help figuring out what I did do wrong.
So where can I put TXT File SNIP?

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string line;
string T;
string min_month, min_date, min_year;
float min_price= 1000000;
while (getline (inFile, line))
{
stringstream X(line);
getline (X, T,' ');
string month= T;
getline (X, T, ' ');
string date= T;
1
getline (X, T, ');
string year T;
getline (X, T, ' ');
string price= T;
float f_price= std::stof (price);
if(f_price < min_price)
{
min_price= f_price;
min_month= month;
min_date= date;
min_year= year;
}
cout << "Lowest Price is "<< min_price<< " on date "<< min_year<< "-"<< min_month<< "-"<< min_date<< endl;
inFile.close();
}
void printMaximumPrice()
{
ifstream inFile;
infile.open("gasPrices.txt");
string line;
string T;
string max_month, max_date, max_year;
float max_price= 0;
while (getline (inFile, line))
{
stringstream X(line);
getline (X, T, ' ');
string month= T;
getline (X, T,
string date= T;
1
getline (X, T,
');
');
string year= T;
1
getline (X, T, ');
string price= T;
Transcribed Image Text:52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 string line; string T; string min_month, min_date, min_year; float min_price= 1000000; while (getline (inFile, line)) { stringstream X(line); getline (X, T,' '); string month= T; getline (X, T, ' '); string date= T; 1 getline (X, T, '); string year T; getline (X, T, ' '); string price= T; float f_price= std::stof (price); if(f_price < min_price) { min_price= f_price; min_month= month; min_date= date; min_year= year; } cout << "Lowest Price is "<< min_price<< " on date "<< min_year<< "-"<< min_month<< "-"<< min_date<< endl; inFile.close(); } void printMaximumPrice() { ifstream inFile; infile.open("gasPrices.txt"); string line; string T; string max_month, max_date, max_year; float max_price= 0; while (getline (inFile, line)) { stringstream X(line); getline (X, T, ' '); string month= T; getline (X, T, string date= T; 1 getline (X, T, '); '); string year= T; 1 getline (X, T, '); string price= T;
Lowest Price is le+06 on date --
Highest Price is 0 on date
Process exited after 0.06144 seconds with return value 0
Press any key to continue . . . |
Transcribed Image Text:Lowest Price is le+06 on date -- Highest Price is 0 on date Process exited after 0.06144 seconds with return value 0 Press any key to continue . . . |
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