View Compilation Error

0_0_28872380_15347.cpp: In function 'int main()':
0_0_28872380_15347.cpp:23:36: error: expected identifier before '%' token
         function<void(int)> dfs = [%2
                                    ^
0_0_28872380_15347.cpp:23:37: error: expected ']' at end of input
         function<void(int)> dfs = [%2
                                     ^
0_0_28872380_15347.cpp: In lambda function:
0_0_28872380_15347.cpp:23:37: error: expected '{' at end of input
0_0_28872380_15347.cpp: In function 'int main()':
0_0_28872380_15347.cpp:23:37: error: conversion from 'main()::<lambda()>' to non-scalar type 'std::function<void(int)>' requested
0_0_28872380_15347.cpp:23:37: error: expected ',' or ';' at end of input
0_0_28872380_15347.cpp:23:37: error: expected '}' at end of input
0_0_28872380_15347.cpp:23:37: error: expected '}' at end of input