Tecq Mate

#include <iostream> #include <fstream> #include <vector> #include <iomanip> using namespace std; bool read_in(vector<char> *store, char *path){ ifstream inf(path); if(inf){ char c; while(inf >> c){ store->push_back(c); } inf.close(); return true; } cout << "Error: Unable to load/read file: " << path << endl; return false; } int main(){ vector<char> answers; if(!read_in(&answers, (char*)"CorrectAnswers.txt")){ cin.get(); return 1; } vector<char> student; if(!read_in(&student, (char*)"StudentAnswers.txt")){ cin.get(); return 2; } if(answers.size() != student.size()){ cout << "Error: No. of questions & answers mismatch!" << endl; cin.get(); return 3; } int missed = 0, correct = 0; for(int i = answers.size()-1; 0 <= i; i --){ if(answers[i] != student[i]){ mi...

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Problem Statement: A file exists on the disk named students.dat. The file contains several records, and each record contains two fields: (1) the student’s name, and (2) the student’s score for the final exam. Design an algorithm that changes Julie Milan’s score to 100. Solution: Start Declare InFile As File Declare OutFile As File Declare Name As String Declare Score As Integer Set InFile = "students.dat" Set OutFile = "students.tmp" For Each Line From InFile Read Next Line Split Line by <Tab> Set Name = Line[0] Set Score = Line[1] If "Julie Milan" = Name Then Set Score = 100 End If Set Line = Name + "<Tab>" + Score Write Line Into OutFile End For Close InFile Close OutFile Delete InFile Rename OutFile to InFile Exit

/** * your name, * the course number, * the date the program was completed, * a brief description of theprogram. */ #include<stdio.h> int merge(const char*, const char*, const char*); int main(){ int error = merge("Data1.txt","Data2.txt","Merged.txt"); if(error){ printf("Error: File merging failed\n"); } else { printf("Success: File merged\n"); } return error; } int merge(const char* n1, const char* n2, const char* n3){ FILE *in1 = fopen(n1, "r"); if(!in1){ printf("Error: Could not read file: %s\n", n1); return 1; } FILE *in2 = fopen(n2, "r"); if(!in2){ fclose(in1); printf("Error: Could not read file: %s\n", n2); return 2; } FILE *out = fopen(n3, "w"); if(!out){ fclose(in1); fclose(in2); printf("Error: Could not write file: %s\n", n3); return 3; } int num1, num2; //until end of file whi...

def read_all(path): nums = None try: with open(path, 'r') as file: for line in file: if not nums: nums = [] try: nums.append(int(line.strip())) except ValueError: pass except IOError as e: print(e) return nums def average(nums): if not nums: return None total = 0 count = 0 for num in nums: total += num count += 1 return total/count if '__main__' == __name__: nums = read_all('number.dat') print(nums) print('average', average(nums)) Download

import os import sys def tree(path): if not os.path.exists(path): print('Path does not exists:', path) return elif os.path.isdir(path): dir = path for path in os.listdir(dir): tree(os.path.join(dir, path)) else: print('File name:', path) with open(path,'r') as file: try: print('File contents:') for line in file: print(line, end='') print('End of file:',path) except UnicodeDecodeError: print('Cannot read binary file!') except IOError: print('Something went wrong!') if '__main__' == __name__: path = os.getcwd() if 1 < len(sys.argv): path = sys.argv[1] tree(path) Download

  try: with open('numbers.dat','r') as file: total = 0 count = 0 for line in file: line = line.strip() if not line: continue try: num = int(line) total += num count += 1 except ValueError: print('Skipped line:',line) print('sum: %.2f' % total) avg = total/count*1.0 print('avg: %.2f' % avg) except IOError: print('Something went wrong!') Download

#include<iostream> #include<fstream> #include<cstdlib> #include<ctime> using namespace std; int main(){ ofstream out("Exercise13_13.dat", (ios::out | ios::binary | ios_base::app)); if(!out){ cerr << "Error: failed to open file!" << endl; return 1; } srand(time(0)); int num; int bytes = sizeof(int); const char *addr = reinterpret_cast<const char*>(&num); for(int i = 1; 100 >= i; i++){ num = rand() % 100; out.write(addr, bytes); } out.close(); return 0; } Download

#include<iostream> #include<fstream> #include<string> #include<iomanip> using namespace std; int main(){ ifstream in("namedalbuminfo.txt"); if(!in){ cerr << "Failed to load input file!" << endl; return 1; } ofstream out("namedtracklist.txt"); string line; int hours, mins, sum_hrs = 0, sum_mins = 0, count = 0, diff; getline(in, line); out << "Album title: " << line << endl; getline(in, line); out << "Artist: " << line << endl; cout << "Welcome to 's tracklist generator!" << endl; out << "Tracks:" << endl; out << "--------------------------------------------------" << endl; while(!in.eof()){ count ++; getline(in, line); in >> hours >> mins; in.ignore(); out << setfill('0') << setw(2) << count; out << " - " <...

using System; using System.IO; class Ex{ public static void Main(string[]args){ float avg; string line; string[]parts; using(StreamReader inf = new StreamReader("ex2.csv")){ using(StreamWriter outf = new StreamWriter("ex2-out.csv")){ while(null != (line = inf.ReadLine())){ parts = line.Split(','); avg = ((int.Parse(parts[1])+int.Parse(parts[2])+int.Parse(parts[3]))/3.0f); outf.WriteLine("{0},{1:0.00}",parts[0],avg); } } } } } Download

using System; using System.IO; class Ex{ public static void Main(string[]args){ int min = 0, max = 0, sum = 0, num, cnt = 0; string line; using(StreamReader file = new StreamReader("ex1.txt")){ while(null != (line = file.ReadLine())){ cnt ++; num = int.Parse(line); sum += num; if(min > num || 1 == cnt) min = num; if(max < num || 1 == cnt) max = num; } } float avg = (sum/(1.0f*cnt)); Console.WriteLine("min: {0}, max: {1}, avg: {2}, sum: {3}", min, max, avg, sum); } } Download

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