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cp21
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Posted on 09-24-15 7:31
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Need the program to read txt file with bunch of characters After reading it should show most commonly used character and least common #include #include #include #include
using namespace std;
const int SIZE = 50; char line[SIZE];
void mostFrequent(char *, int);
int main() { ifstream inputFile;
//Open the file inputFile.open("c:/letter_count.txt"); if (inputFile.fail()) { cout << "Error opening file.\n"; } else { // Process the file. }
char string[SIZE]; int length; cin.getline(string, SIZE); length = strlen(string); char *stptr = string; mostFrequent(stptr, length);
cin.get();
return 0; }
void mostFrequent(char *ptr, int length) { int array[256] = { 0 }; int i; int index = 0; char ch;
for (i = 0; ptr[i] != '\0'; i++) { if (ptr[i] != ' ') ++array[ptr[i]]; } for (i = 0; i < 256; i++) cout << array[i]; cout << endl;
int max = array[0]; for (i = 1; i < 256; i++)
{ if (array[i] > max)
{ max = array[i]; index = i; } }
cout << "The most common letter occurrences "
<< static_cast(index);
}
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The postings in this thread span 2 pages, go to PAGE 1.
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cp21
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Posted on 09-24-15 9:10
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modified some but still need your help #include #include #include #include
using namespace std;
void initialize(int&, int[]); void copyText(ifstream&, char&, int[]); void mostCommon(char,int); void leastCommon(char,int);
int main() { int line; int letter[26]; char ch; ifstream infile; infile.open("c:/letter_count.txt"); if (infile.fail()) { cout << "Error opening file.\n"; } else { // Process the file. } initialize(line, letter); infile.get(ch);
while(infile) { copyText (infile,ch,letter); line++; infile.get(ch); }
return 0; }
void initialize(int& loc, int list[]) { loc = 0; for (int i = 0; i < 26; i++) list[i] = 0; }
void count(char ch, int list[]) { ch = toupper(ch); int index = static_cast(ch)-static_cast('A'); if (0 <= index && index < 26) list[index]++; }
void mostCommon(char,int) { { int max = 0; int count = 0; string mostCommon; for (char i = ' '; i <= '~'; i++)
{ count = 0; for (int i = 0; i { if (char[i] == i) count++; }
if (count == max) { mostCommon += i; }
if (count>max) { max = count; mostCommon = i; } }
}
{
cout << "The most common letter occurrences "
<< static_cast
}
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cp21
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Posted on 09-25-15 7:57
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kata gayab ho C++ experts haru, help me with this code its not compiling
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alece
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Posted on 09-25-15 8:55
AM [Snapshot: 119]
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sigh!! kati desperate bhako bro..tait..and start using stackoverflow jeez. I hope now you can figure out on how to do with file input... string mostFrequent(string input) { int max = 0; int count = 0; string mostOccuringChar; for(char a=' ';a<='~';a++) { count = 0; for(int i=0; i) { if(input[i]==a) count++; } if(count == max) { mostOccuringChar += a; } if(count>max) { max=count; mostOccuringChar=a; } } return mostOccuringChar; } int main() { cout <<"The letter that occurs most is: "<< mostFrequent("Hello World") < system("pause"); }
Last edited: 25-Sep-15 08:58 AM
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alece
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Posted on 09-25-15 8:55
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Last edited: 25-Sep-15 08:57 AM
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cp21
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Posted on 09-25-15 12:23
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toupper A kata cha code ma bro, and i added entire code and modified few but stilll no go project due tomorrow cha
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cp21
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Posted on 09-25-15 12:28
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tyo file in c:/letter_count.txt read bhako nai chaina kina hola error aihalcha
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alece
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Posted on 09-25-15 1:12
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File read bhako chaina ? what error are you getting? Paste you errors. Here is info on how to read..it's not that hard.. http://www.cplusplus.com/doc/tutorial/files/ toupper kata cha?... why don't u add that?
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cp21
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Posted on 09-25-15 1:42
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not sure what am i doing wrong here bro, can you debug and see it for me please #include #include #include #include
using namespace std;
void initialize(int&, int[]); void copyText(ifstream&, char&, int[]); void mostCommon(char,int); void leastCommon(char,int);
void initialize(int& loc, int list[]) { loc = 0; for (int i = 0; i < 26; i++) list[i] = 0; }
void count(char ch, int list[]) { ch = toupper(ch); int index = static_cast(ch)-static_cast('A'); if (0 <= index && index < 26) list[index]++; }
string mostCommon(string input) { int max = 0; int count = 0; string mostCommonChar; for (char a = ' '; a <= '~'; a++)
{ count = 0; for (int i = 0; i;) { if (input[i] == a) count++; }
if (count == max) { mostCommonChar += a; }
if (count > max) { max = count; mostCommonChar = a;
cout << "The letter that occurs most is: " << mostCommon("Hello World") << system("pause");
return mostCommonChar; } }
int main() { int line; int letter[26]; char ch; ifstream infile;
ifstream myfile("c:/letter_count.txt"); if (myfile.is_open()) { while (getline(myfile, line)) cout << line << '\n'; } myfile.close();
else cout << "Unable to open file";
} return 0; }
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alece
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Posted on 09-25-15 2:36
PM [Snapshot: 195]
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Here, this works assuming your text file has no spaces between words.. So, modify accordingly.Seriously, can't sit here all day and debug your code. #include "stdafx.h" #include <fstream> #include <iostream> #include <fstream> #include <string> using namespace std;
string mostFrequent(string input) { int max = 0; int count = 0; string mostOccuringChar; for(char a=' ';a<='~';a++)
{ count = 0; for(int i=0; i) { if(input[i]==a) count++; }
if(count == max) { mostOccuringChar += a; }
if(count>max) { max=count; mostOccuringChar=a; } }
return mostOccuringChar; }
int main() { fstream f("C:\\test.txt", fstream::in ); string s; getline( f, s, '\0'); string test = s; cout << s << endl; cout <<"Most frequent is-->"<< mostFrequent(test) <<endl; f.close(); system("pause"); }
Last edited: 25-Sep-15 02:36 PM
Last edited: 25-Sep-15 02:40 PM
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cp21
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Posted on 09-25-15 2:56
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thanks for your help alece bro
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alece
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Posted on 09-25-15 3:01
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is it good ? can you take it from here now ?
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cp21
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Posted on 09-25-15 3:07
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cp21
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Posted on 09-25-15 3:08
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As you can see its not showing the total number of most commonly used letter Not sure what is happening, i will have to keep searching
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cp21
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Posted on 09-25-15 3:14
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this code actually compiles and shows right result, however i can't use this because it is using C-strings and C-strings functions I am only allowed to use C++ string class and no global variables are to be used #include #include #include #include #include #include #include
using namespace std;
class LetterCounter { public: LetterCounter(); void ReadFile(char *lower_count); void ParseTextAndCountLetters(); void getMinMaxChar(char *minChar, char *maxChar, int *minCount, int *maxCount);
~LetterCounter();
private: FILE *fpt; char line[15];
int frequency[26]; string stext;
};
LetterCounter::~LetterCounter() { // empty destructor // }
LetterCounter::LetterCounter() { for (int i = 0; i < 26; i++) frequency[i] = 0; //empty constructor
return; }
void LetterCounter::ReadFile(char *letter_count) { errno_t err; if ((err = fopen_s(&fpt, letter_count, "r")) == 0) { printf("\nopenend file %s", letter_count);
while (!feof(fpt)) { fscanf_s(fpt, "%s", line, _countof(line)); stext.append(line); }
fclose(fpt); } else { printf("\nCould not open %s", letter_count); }
return; }
void LetterCounter::ParseTextAndCountLetters() { int i; int length = stext.length();
for (i = 0; i < length; i++) { char c = toupper(stext.c_str()[i]);
if (c > 64 && c < 92) { printf("%c", c); frequency[c - 65]++; }
}
return; }
void LetterCounter::getMinMaxChar(char *minChar, char *maxChar, int *minCount, int *maxCount) {
*minChar = *maxChar = 0; *minCount = *maxCount = 0;
*minChar = frequency[0];
for (int i = 0; i < 26; i++) { if (frequency[i] > *maxCount) { *maxCount = frequency[i]; *maxChar = i + 65; }
if (frequency[i] < *minCount) { *minCount = frequency[i]; *minChar = i + 65; }
}
}
int main() { LetterCounter lc; ifstream inFile("c:/letter_count.txt", ios::in); char minChar, maxChar; int minCount, maxCount;
minChar = maxChar = minCount = maxCount = 0; lc.ReadFile("c:/letter_count.txt"); lc.ParseTextAndCountLetters(); lc.getMinMaxChar(&minChar, &maxChar, &minCount, &maxCount);
printf("\n The most common letter is %c with = %d occurrences", maxChar, maxCount);
printf("\nPress a key to exit!!");
getchar();
return 0; }
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cp21
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Posted on 09-25-15 3:15
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alece
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Posted on 09-25-15 3:55
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did you even bother to read the comment i put at the top ? i told you it will work if the file has no spaces in it.. sigh!!
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cp21
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Posted on 09-25-15 7:24
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any thoughts on how to make it work including spaces in text? again i appreciate all your inputs and help thanks much
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cp21
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Posted on 09-28-15 9:26
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alece any thoughts and btw after testing your code it shows all characters and does not calc total occurrence
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cp21
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Posted on 09-29-15 6:10
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Does anyone know how to convert c to c++ prg
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hireme
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Posted on 10-05-15 8:00
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There is one opening for c/c++ developer, is there anyone with solid experience on it? I can refer to a company. send me email at findmeitjob@gmail.com
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