Compilare: user.cpp: In function ‘void compute(int)’: user.cpp:109:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int ind = 1; ind <= M[CTC].size(); ind++){ ^ user.cpp: In function ‘int main()’: user.cpp:132:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < M.size(); i++) ^ user.cpp:137:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < M.size(); i++) ^ user.cpp:122:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d", &n, &m); ^ user.cpp:126:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%lf%lf", &a, &b, &p0, &p1); a++, b++; ^