Borderou de evaluare (job #360741)

Compilare: user.cpp: In function ‘void dfs(int, int, int, int)’: user.cpp:133:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘int main()’: user.cpp:160:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:140:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:143:52: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]