[ad_1] This should do the trick: #include <stdio.h> #include <string.h> int extract_line (char* line, char* buffer, char* ctag) { char line_buffer[255] = {0}; char* tagStart; char* tagEnd; if( strlen(line) < (sizeof(line_buffer)/sizeof(char)) ) { strcpy(line_buffer,line); } else { printf(“Line size is too big.\n”); return 1; } tagStart = strstr(line_buffer,ctag); if(tagStart != NULL) { tagEnd = strstr(tagStart+1,ctag); … Read more
[ad_1] The std::cin method from the iostream library returns true when it can read an input and false when it tries to read but there’s nothing more to read. So you can use while(cin >> bar) and it will read input until it finds an EOF character (either from you pressing CTRL+D in the console … Read more
[ad_1] You can do this: float x = 10.5; float y = 13.4; float z = 12.7; float a = 52.0; float sum = (x + y + z + a); System.out.println(“Your sum is:” + sum); 0 [ad_2] solved Summing more than two doubles
[ad_1] it’s a ternary operator basicly if a > b then return a else b [ad_2] solved What does this mean in a java code? Is the first time I’ve seen it: [duplicate]
[ad_1] Statement a[637][i]++ increases the value of the cell 637/i of two-dimensional array a. assert(0) simply aborts program execution at this point (since condition 0 means false, defining that the assertion is never met). Confer this SO answer for a more detailed explanation. [ad_2] solved In c++, what does an increment to a 2D array? … Read more
[ad_1] the way your code is structured, you iterate over the matches in your for loop, then, when the loop is finished, you save the last match in your CSV. You probably want to write each match in your CSV instead, inside the for loop. try to replace the last lines of your code (starting … Read more
[ad_1] Your objects initial value: var myObj = [{‘ABC’: ‘5’}, {‘BCD’: ‘1’}] Now if DDD doesn’t exists, just add it: var DDD = “3” var DDDExists = false; myObj.forEach(function(){ if(this.DDD.length > 0){ // If it exists, break the loop DDDExists = true; break; } }) // If DDD doesn’t exists, add it if(DDDExists === false){ … Read more
[ad_1] You could use isdigit to check if your string contains digits Example 1 print( all( not c.isdigit() for c in “String doesn’t contain any numbers.” ) ) True Example 2 print( all( not c.isdigit() for c in “String 2 doesn’t contain any numbers.” ) ) False [ad_2] solved How to program to only input … Read more
[ad_1] I think you need Series.cumsum with select last row (total row) by DataFrame.iloc: df = pd.DataFrame({ ‘B’:[4,5,4], ‘C’:[7,8,9], ‘D’:[1,3,5], ‘E’:[5,3,6], }) df.loc[‘sum’] = df.sum() df.loc[‘cumsum’] = df.iloc[-1].cumsum() #if need only cumsum row #df.loc[‘cumsum’] = df.sum().cumsum() print (df) B C D E 0 4 7 1 5 1 5 8 3 3 2 4 9 … Read more
[ad_1] There’s no such thing as infinity in programming, but you can use Integer.MAX_VALUE which is basically the same. You can read about it here: https://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html 4 [ad_2] solved generate random number larger than given number until infinity in java
[ad_1] You can use setTimeout function and run a function to disable the function Like $(document).ready(function(){ function btn_disable() { $(“#btn-id”).attr(‘disabled’,’disabled’); // #btn-id need to button id alert(“Some error message.”); // you can code here to set error message } setTimeout(btn_disable,3000);// here 3000 means 3 seconds so please calculate for hour }); You can check it … Read more
[ad_1] You need to add a colon : after the if statement: if a==3: [ad_2] solved How to write if else statement in python win? [closed]
[ad_1] Looking at your code the class Result is not a list which I think you are trying to call with List()? not sure.. To create a List<> you can do it multiple ways see below on a few options. Try these in your Main method. List<string> stringList = new List<string>(); //creates a List<string> called … Read more
[ad_1] We can use pivot_longer from tidyr library(dplyr) library(tidyr) dt %>% pivot_longer(cols = Apples:Oranges, names_to = ‘Type’, values_to = ‘Values’) %>% arrange(Year, Type) -output # A tibble: 6 x 5 # Year Month Location Type Values # <dbl> <chr> <chr> <chr> <dbl> #1 2020 Jan Store_1 Apples 100 #2 2020 Jan Store_1 Apples 150 #3 … Read more
[ad_1] I keep getting java.lang.String com.google.firebase.auth.FirebaseUser.getUid()’ error although it has already confirmed they is a user [ad_2] solved I keep getting java.lang.String com.google.firebase.auth.FirebaseUser.getUid()’ error although it has already confirmed they is a user