Sort using lambda c++

vector<int> v = {50, -10, 20, -30};

sort(v.begin(), v.end());  // the default sort
// now v should be { -30, -10, 20, 50 }

// sort by absolute value:
sort(v.begin(), v.end(), [](int a, int b) { return abs(a)<abs(b); });
// now v should be { -10, 20, -30, 50 }

Similar codes

1 vote133 views2 answers
Maximum value in map in c++
C++
0 vote126 views1 answer
C++ classes
C++
0 vote115 views1 answer
Unknown number of threads cpp
C++
0 vote109 views1 answer
C++ looping through a vector
C++
8 votes106 views3 answers
Print to console c++
C++
1 vote128 views1 answer
If not defined c++
C++
0 vote128 views1 answer
C++ iterate over vector of pointers
C++
2 votes122 views2 answers
Check if directory exists cpp
C++
0 vote116 views1 answer
String hash
C++
1 vote123 views1 answer
Save all output in log file c cpp
C++