salvare.cpp: In function 'void dfs(int, int, int)': salvare.cpp:15: warning: 'auto' will change meaning in C++0x; please remove it salvare.cpp:15: error: expected initializer before ':' token salvare.cpp:22: error: expected primary-expression before 'if' salvare.cpp:22: error: expected ';' before 'if' salvare.cpp:22: error: expected primary-expression before 'if' salvare.cpp:22: error: expected ')' before 'if' salvare.cpp: In function 'int main()': salvare.cpp:96: warning: unused variable 'x' salvare.cpp:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result salvare.cpp:67: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result salvare.cpp:69: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result salvare.cpp:74: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result