View Compilation Error

0_0_6749996_17874.cpp: In function `void dfs(std::string)':
0_0_6749996_17874.cpp:58: error: expected `;' before "for"
0_0_6749996_17874.cpp:58: error: `i' undeclared (first use this function)
0_0_6749996_17874.cpp:58: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6749996_17874.cpp:58: error: expected `;' before ')' token