Compilare: user.cpp: In function ‘void dfs1(int, int)’: user.cpp:3:123: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] } ^ user.cpp:4:11: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ user.cpp: In function ‘int main()’: user.cpp:7:2: warning: unused variable ‘r1’ [-Wunused-variable] user.cpp:5:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:5:77: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:5:111: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]