Compilare: user.cpp: In function ‘int main()’: user.cpp:138:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘char*’ [-Wformat=] fscanf(f,"%d", &t); ^ user.cpp:142:20: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[502]’ [-Wformat=] fscanf(f,"%s", &s); ^ user.cpp:138:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d", &t); ^ user.cpp:142:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s", &s); ^