Compilare: main.cpp: In function 'int main()': main.cpp:109:13: warning: unused variable 'p' [-Wunused-variable] int p(0) ; ^ main.cpp:110:26: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(S, MV, in) ; ^ main.cpp:114:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d\n", &q) ; ^