Question

Done in C++, Write a program to read the input file, shown below and write out the output file shown below. Use only string objects and string functions to process the data. Do not use c-string functions or stringstream (or istringstream or ostringstream) class objects for your solution.

Input File

Cincinnati 27, Buffalo 24 Detroit 31, Cleveland 17 Kansas City 24, Oakland 7 Carolina 35, Minnesota 10 Pittsburgh 19, NY Jets 6 Philadelphia 31, Tampa Bay 20 Green Bay 19, Baltimore 17 St. Louis 38, Houston 13 Denver 35, Jacksonville 19 Seattle 20, Tennessee 13 New England 30, New Orleans 27 San Francisco 32, Arizona 20 Dallas 31, Washington 16

Output File

Cincinnati over Buffalo by 3 Detroit over Cleveland by 14 Kansas City over Oakland by 17 Carolina over Minnesota by 25 Pittsburgh over NY Jets by 13 Philadelphia over Tampa Bay by 11 Green Bay over Baltimore by 2 St. Louis over Houston by 25 Denver over Jacksonville by 16 Seattle over Tennessee by 7 New England over New Orleans by 3 San Francisco over Arizona by 12 Dallas over Washington by 15

Answer 1

code in c++ (code to copy)

#include<bits/stdc++.h>
using namespace std;

int main()
{
        //use ifstream to read from input.txt
        ifstream infile("input.txt");
        //use ofstream to write from input.txt
        ofstream outfile("output.txt");
        string buffer;
        while(getline(infile, buffer)){
                string teamA, teamB;
                int goalsA, goalsB;

                //get position of first digit
                int pos=0;
                while(buffer[pos]<'0'||buffer[pos]>'9'){
                        pos++;
                }

                // read first team in winteam 
                teamA = buffer.substr(0, pos-1);

                //remove this from buffer
                buffer = buffer.substr(pos);
                
                pos=0;
                //read position of comma
                while(buffer[pos]!=','){
                        pos++;
                }

                //read goals by team A till comma
                goalsA = stoi(buffer.substr(0, pos));
                
                pos+=2;
                
                //remove this from buffer
                buffer = buffer.substr(pos);
                
                pos=0;
                //read till next digit
                while(buffer[pos]<'0'||buffer[pos]>'9'){
                        pos++;
                }

                // read second team in winteam 
                teamB = buffer.substr(0, pos-1);

                //remove this from buffer
                buffer = buffer.substr(pos);

                pos=0;
                //read goals by team A till end of file
                goalsB = stoi(buffer);

                outfile<<teamA<<" over "<<teamB<<" by "<<(goalsA-goalsB)<<endl;
        }
        // close files 
        infile.close();
        outfile.close();
}

code screenshot

input.txt screenshot

output.txt after execution

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