Compilare: user.cpp: In function ‘void read()’: user.cpp:23:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0, u, v, c; i < M; i++) ^ user.cpp: In function ‘bool augumentingPath(int, int)’: user.cpp:40:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i <= Terminal; i++) ^ user.cpp: In function ‘void read()’: user.cpp:22:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &N, &M); ^ user.cpp:25:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d", &u, &v, &c); ^