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How to retain two decimal places in c++
In C++, use the `std::fixed` and `std::setprecision` functions (defined in the `<iomanip>` header file) to preserve two decimal places in the output. `std::fixed` sets the output format to a fixed decimal point format, while `std::setprecision(2)` specifies keeping two decimal places. If you want to know more about C++, you can read the articles below this topic.
How to retain two decimal places in c++ outputIn C++, two decimal places can be preserved on output using the `std::fixed` and `std::setprecision` functions (defined in the `<iomanip>` header file). `std::fixed` sets the output format to a fixed decimal point format, while `std::setprecision(2)` specifies keeping two decimal places.
How to initialize a two-dimensional array in C++The method of initializing a two-dimensional array in C++: first define two integer variables and initialize different values for the two-dimensional array; then use a double loop to output each value in the array; finally use the numbers enclosed in curly brackets to assign values directly .
How to set global variables in c++C++ global variables refer to variables that are not enclosed in curly braces outside the function. The method of setting global variables: first define a custom function that implements addition; then define a custom function that implements multiplication; then in the main function Just implement the operation of the program.
How to compare two strings in c++?The method of comparing two strings in C++: first define the integer variable j and two string variables; then input the two strings and save them in the variables s1 and s2 and compare the sizes; finally, according to the value of the judgment result j, output two String comparison results are enough.
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