Compilare: user.cpp: In function ‘int freef(FILE*)’: user.cpp:29:17: warning: variable ‘sign’ set but not used [-Wunused-but-set-variable] char c = '#', sign; ^ user.cpp: In function ‘int cautBin(int, int)’: user.cpp:85:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i + pas < col[j].loc.size() && col[j].loc[i + pas] <= nr) { ^ user.cpp: In function ‘int main()’: user.cpp:157:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 1; j < lin[i].loc.size(); j++) { ^ user.cpp:165:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (lin1 < col[lin[i].loc[j - 1]].loc.size() && lin2 < col[lin[i].loc[j]].loc.size()) { ^ user.cpp:165:96: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (lin1 < col[lin[i].loc[j - 1]].loc.size() && lin2 < col[lin[i].loc[j]].loc.size()) { ^ user.cpp: In function ‘char getChar(FILE*)’: user.cpp:22:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, MAX_BUFF, f); ^