Compilare: user.cpp: In function ‘int main()’: user.cpp:131:6: warning: unused variable ‘mx’ [-Wunused-variable] int mx; ^ user.cpp:91:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d\n",&n,&t); ^ user.cpp:93:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(cuv+1,n,1,in); ^ user.cpp:100:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(input,sizeof input,1,in); ^