Completely depends on your data, if it is nearly sorted, a bubble sort will be faster than a merge sort

Ok then In what cases should I use selection sort,merge sort and insertion sort I am very much confused and this type of question is asked in interviews. How will a programmer know in advance that his data will be partially sorted of not and now its time to apply insertion sort in this case

G'night. Anyone here wanna help with an assignment?

*polishes ban hammer*

why this program run in turbo cpp for 1 time main() { int a; clrscr(); for(a=1; 0; a++) { printf("%d",a); } getch(); }

why this program run in turbo cpp for 1 time main() { int a; clrscr(); for(a=1; 0; a++) { printf("%d",a); } getch(); }

Read the rules in the pinned message, please Especially, last but one rule

But i want to say in another ide/editor output is 0 but in turbo c its 1

The printf inside the loop is not supposed to run at all so I suspect that the 0/1 you see is something else. Try replacing the printf with printf("abc");

What other editor did you try? The clrscr is available only in turbo compiler

You have 0 in part that should have some condition

and in condition if we replace 0 by 1 than it will be an infinite loop

of course, because 1 evaluates to true every time

but than i replace 1 to 0 than why i got 1 in output

you need a condition that changes at some point

have you tried changing the print?

but sir u r wrong

also, you can use a lot of online compilers

This is what we call "missing opening brace" in C++: clang++ -std=c++17 src/threadweaver.hpp src/threadweaver.hpp:96:57: error: member initializer 'threads' does not name a non-static data member or base class ThreadScheduler(unsigned int amountOfThreads = 1) : threads(amountOfThreads, Thread{}) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/threadweaver.hpp:101:24: error: use of undeclared identifier 'threads'; did you mean 'fread'? for (auto &i : threads) ^~~~~~~ fread /usr/include/stdio.h:646:15: note: 'fread' declared here extern size_t fread (void *__restrict __ptr, size_t __size, ^ src/threadweaver.hpp:101:22: error: invalid range expression of type 'unsigned long (void *, unsigned long, unsigned long, _IO_FILE *)'; no viable 'begin' function available for (auto &i : threads) ^ ~~~~~~~ src/threadweaver.hpp:106:24: error: use of undeclared identifier 'threads'; did you mean 'fread'? for (auto &i : threads) ^~~~~~~ fread /usr/include/stdio.h:646:15: note: 'fread' declared here extern size_t fread (void *__restrict __ptr, size_t __size, ^ src/threadweaver.hpp:106:22: error: invalid range expression of type 'unsigned long (void *, unsigned long, unsigned long, _IO_FILE *)'; no viable 'begin' function available for (auto &i : threads) ^ ~~~~~~~ src/threadweaver.hpp:112:9: error: unknown type name 'threads'; did you mean 'Thread'? threads[dispatcher % size()].queueFunction(function, arguments...); ^~~~~~~ Thread src/threadweaver.hpp:58:8: note: 'Thread' declared here struct Thread ^ src/threadweaver.hpp:112:17: error: use of undeclared identifier 'dispatcher' threads[dispatcher % size()].queueFunction(function, arguments...); ^ src/threadweaver.hpp:112:37: error: cannot use dot operator on a type threads[dispatcher % size()].queueFunction(function, arguments...); ^ src/threadweaver.hpp:113:9: error: use of undeclared identifier 'dispatcher' dispatcher++; ^ src/threadweaver.hpp:117:16: error: use of undeclared identifier 'threads' return threads.size(); ^ src/threadweaver.hpp:121:23: error: use of undeclared identifier 'threads' if (newSize > threads.size()) ^ src/threadweaver.hpp:122:24: error: use of undeclared identifier 'threads' addThreads(threads.size() - newSize); ^ src/threadweaver.hpp:124:27: error: use of undeclared identifier 'threads' removeThreads(threads.size() - newSize); ^ src/threadweaver.hpp:134:13: error: use of undeclared identifier 'threads' threads.push_back (Thread{}); ^ src/threadweaver.hpp:141:9: error: expected statement } ^ src/threadweaver.hpp:142:6: error: expected ';' after struct } ^ src/threadweaver.hpp:147:1: error: extraneous closing brace ('}') } // namespace THW

This is what we call "missing opening brace" in C++: clang++ -std=c++17 src/threadweaver.hpp src/threadweaver.hpp:96:57: error: member initializer 'threads' does not name a non-static data member or base class ThreadScheduler(unsigned int amountOfThreads = 1) : threads(amountOfThreads, Thread{}) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/threadweaver.hpp:101:24: error: use of undeclared identifier 'threads'; did you mean 'fread'? for (auto &i : threads) ^~~~~~~ fread /usr/include/stdio.h:646:15: note: 'fread' declared here extern size_t fread (void *__restrict __ptr, size_t __size, ^ src/threadweaver.hpp:101:22: error: invalid range expression of type 'unsigned long (void *, unsigned long, unsigned long, _IO_FILE *)'; no viable 'begin' function available for (auto &i : threads) ^ ~~~~~~~ src/threadweaver.hpp:106:24: error: use of undeclared identifier 'threads'; did you mean 'fread'? for (auto &i : threads) ^~~~~~~ fread /usr/include/stdio.h:646:15: note: 'fread' declared here extern size_t fread (void *__restrict __ptr, size_t __size, ^ src/threadweaver.hpp:106:22: error: invalid range expression of type 'unsigned long (void *, unsigned long, unsigned long, _IO_FILE *)'; no viable 'begin' function available for (auto &i : threads) ^ ~~~~~~~ src/threadweaver.hpp:112:9: error: unknown type name 'threads'; did you mean 'Thread'? threads[dispatcher % size()].queueFunction(function, arguments...); ^~~~~~~ Thread src/threadweaver.hpp:58:8: note: 'Thread' declared here struct Thread ^ src/threadweaver.hpp:112:17: error: use of undeclared identifier 'dispatcher' threads[dispatcher % size()].queueFunction(function, arguments...); ^ src/threadweaver.hpp:112:37: error: cannot use dot operator on a type threads[dispatcher % size()].queueFunction(function, arguments...); ^ src/threadweaver.hpp:113:9: error: use of undeclared identifier 'dispatcher' dispatcher++; ^ src/threadweaver.hpp:117:16: error: use of undeclared identifier 'threads' return threads.size(); ^ src/threadweaver.hpp:121:23: error: use of undeclared identifier 'threads' if (newSize > threads.size()) ^ src/threadweaver.hpp:122:24: error: use of undeclared identifier 'threads' addThreads(threads.size() - newSize); ^ src/threadweaver.hpp:124:27: error: use of undeclared identifier 'threads' removeThreads(threads.size() - newSize); ^ src/threadweaver.hpp:134:13: error: use of undeclared identifier 'threads' threads.push_back (Thread{}); ^ src/threadweaver.hpp:141:9: error: expected statement } ^ src/threadweaver.hpp:142:6: error: expected ';' after struct } ^ src/threadweaver.hpp:147:1: error: extraneous closing brace ('}') } // namespace THW

because normally the last lines of errors make no sense

Well not in this case

Hi, who has K&R book? I have a question from that.

just ask

I don't read old books

K&R is an old book which knowledge is better covered in newer books

K&R c allowed for function definitions that have no return type, I think