In process of studying sometimes we solving contests and I use this template.
Template itself located in main.cpp.
First, make sure this code works on your machine:
make --version
clang-10 --versionIf acm.math.spbu.ru is not your platform, you can't use optimization.h file, but you can simply copy and paste fast IO from there.
Let's solve A+B problem with this template, here is solution:
#include <bits/stdc++.h>
// #include "optimization.h" // only if solving on acm.math.spbu.ru !!!
#define debug(expr)
#ifdef LOCAL
#include "debug.h"
#endif
signed main()
{
#ifdef LOCAL
freopen("input", "r", stdin);
#endif
std::ios_base::sync_with_stdio(false);
std::cin.tie(0);
std::cout.tie(0);
int a, b;
std::cin >> a >> b;
int result = a - b;
debug(res);
std::cout << result << std::endl;
return 0;
}You can put test to input file, if you don't want to type it every time you compile your code. Otherwise, you can compile with make nlocal, then you will be able to put your test in command line by yourself. By default, input read from input.
So, I type make in command line and it works like:
gleb@ZenBook:~/Documents/hse/y2/algo/prac$ cat input
7 3
gleb@ZenBook:~/Documents/hse/y2/algo/prac$ make
======= BEGIN =======
4
======= END =======
gleb@ZenBook:~/Documents/hse/y2/algo/prac$You may notice that we didn't solve A+B problem correctly. So, we want to see out res variable. So we just add debug(res):
int a, b;
std::cin >> a >> b;
int result = a - b;
debug(result);
std::cout << result << std::endl;And now we type make in CL:
======= BEGIN =======
result: 4
4
======= END =======debug is extremely powerful:
std::map<int, std::pair<float, std::set<std::string>>> weird_1{{1, {0.01, {"hello", "hi"}}}};
debug(weird_1);
std::unordered_multimap<int, std::set<std::pair<int, int>>> weird_2{{2, {{}, {}}}, {}};
debug(weird_2);
std::vector<std::string> long_strings{"no", "sssssssssssssssssssssssssssssssssssssssss", "sdfssssssssssssssssssss", "hello", "hi", "how are you"};
debug(long_strings);
std::vector<std::pair<float, double>> short_strings{{1, 2}, {3, 4}};
debug(short_strings);We getting pretty result:
======= BEGIN =======
weird_1: {1: (0.010000, ["hello", "hi"])}
weird_2: [(0, []), (2, [(0, 0)])]
long_strings: ["no",
"sssssssssssssssssssssssssssssssssssssssss",
"sdfssssssssssssssssssss",
"hello",
"hi",
"how are you"]
short_strings: [(1.000000, 2.000000), (3.000000, 4.000000)]
======= END =======Works with a lot of STL containers.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent