Compilare: main.cpp: In function 'int main()': main.cpp:26:29: warning: unused variable 'expc' [-Wunused-variable] int q, i, exp, k, d, nrd, expc, maxk, pow, invmod; ^~~~ main.cpp:26:35: warning: variable 'maxk' set but not used [-Wunused-but-set-variable] int q, i, exp, k, d, nrd, expc, maxk, pow, invmod; ^~~~ main.cpp:44:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &q ); ^ main.cpp:46:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%lld", &n ); ^