init repo

.gitignore

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+.idea*

LAB_1/12_first_symbols_to_spaces.cpp

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+//
+// Created by pajjilykk on 10/1/25.
+//

LAB_1/ilya`s/file.in

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+Hi! This is a test.
+Wait: are commas, periods, and exclamations replaced?
+Let's check!
+@#$%&*)_+
+

LAB_1/ilya`s/file.out

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+Hi9 This is a test9
+Wait9 are commas9 periods9 and exclamations replaced9
+Let's check9
+@#$%&*)_+
+
+

LAB_1/ilya`s/signs.cpp

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+#include <iostream>
+#include <fstream>
+#include <string>
+#include <sys/stat.h>
+
+using namespace std;
+
+// ???????? ????????????? ?????
+bool fileExists(const string& filename) {
+    struct stat buffer;
+    return (stat(filename.c_str(), &buffer) == 0);
+}
+
+// ????????? ????? ????????? ????? ? ??????? ?????????? ?? ".out"
+string getOutputFileName(const string& inputFileName) {
+    size_t pos = inputFileName.find_last_of('.');
+    if (pos == string::npos) { 
+        // ???? ?????????? ???, ????????? .out
+        return inputFileName + ".out";
+    }
+    return inputFileName.substr(0, pos) + ".out";  // ???????? ??????????
+}
+
+// ????????, ???????? ?? ?????? ?????? ??????????, ?????????? ??????
+bool isSign(char c) {
+    return (c == '!' || c == '?' || c == '.' || c == ',' || c == ';' || c == ':');
+}
+
+int main(int argc, char* argv[]) {
+    if (argc != 3) {
+        cerr << "Error: Missing arguments.\nUsage: " << argv[0] << " <inputfile> <symbol>\n";
+        return -1;
+    }
+
+    string inputFileName = argv[1];
+    char replacementSymbol = argv[2][0];
+
+    if (!fileExists(inputFileName)) {
+        cerr << "Error: Input file \"" << inputFileName << "\" does not exist.\n";
+        return -1;
+    }
+
+    string outputFileName = getOutputFileName(inputFileName);
+
+    ifstream inFile(inputFileName);
+    if (!inFile) {
+        cerr << "Error: Cannot open input file.\n";
+        return -1;
+    }
+
+    ofstream outFile(outputFileName);
+    if (!outFile) {
+        cerr << "Error: Cannot create output file.\n";
+        return -1;
+    }
+
+    int replaceCount = 0;
+    char ch;
+    while (inFile.get(ch)) {
+        if (isSign(ch)) {
+            ch = replacementSymbol;
+            replaceCount++;
+        }
+        outFile.put(ch);
+        if (!outFile) {
+            cerr << "Error: Write error occurred.\n";
+            return -1;
+        }
+    }
+
+    inFile.close();
+    outFile.close();
+
+    cout << replaceCount << endl;  // ??????? ????? ?????
+    return replaceCount;
+}