CP Debug Printer

Instantly generate cerr debug print statements for any C++ variable with a single shortcut — built for competitive programming.

Usage

1. Place cursor on any variable (or select it)
2. Press Ctrl+Shift+D
3. A debug print line is inserted below automatically

Features

• Works with any alias — vll, pii, vpii, or whatever you define
• Automatically decodes using and typedef aliases
• Supports all common CP data structures

Supported Types

Type	Example	Output
Scalar	int, ll, double	cerr << "x: " << x << "\n";
Bool	bool	prints true/false
String	string	quoted print
Pair	pair<int,int>, pii	{a, b}
Tuple	tuple<int,int,int>	{a, b, c}
Vector	vector<int>, vi, vll	range-for loop
2D Vector	vector<vector<int>>, vvi	nested loop
Vector of Pairs	vector<pii>, vpii	{a,b} per element
Vector of Tuples	vector<tuple<...>>	{a,b,c} per element
Set / Multiset	set<int>, si	range-for loop
Set of Pairs	set<pii>	{a,b} per element
Map	map<int,int>, mii	k->v
Map + Vector value	map<int,vector<int>>	k->[v1 v2 ...]
Map + Pair value	map<int,pii>	k->{a,b}
Map + Set value	map<int,set<int>>	k->{s1 s2 ...}
Nested Map	map<int,map<int,int>>	nested print
Stack	stack<int>	destructive copy loop
Queue	queue<int>	destructive copy loop
Priority Queue	priority_queue<pii>	destructive copy loop
Deque	deque<int>	range-for loop

Alias Support

Any alias defined with using or typedef is automatically resolved:

using ll   = long long;
using pii  = pair<int,int>;
using vpii = vector<pii>;     // chained alias — works!

vpii v = {{1,2},{3,4}};
// Ctrl+Shift+D generates:
cerr << "v: "; for(auto& [_a,_b]: v) cerr << "{" << _a << "," << _b << "} "; cerr << "\n";

Aliases defined in locally #included header files are also resolved automatically.

Requirements

C++ files only (.cpp). Activated automatically on onLanguage:cpp.