Compilare: user.cpp: In function ‘int main()’: user.cpp:82:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, nrp = 0; ^ user.cpp:82:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, nrp = 0; ^ user.cpp:94:9: warning: unused variable ‘curr_hash1’ [-Wunused-variable] int curr_hash1 = 0, curr_hash2 = 0, curr_hash3 = 0; ^ user.cpp:94:25: warning: unused variable ‘curr_hash2’ [-Wunused-variable] int curr_hash1 = 0, curr_hash2 = 0, curr_hash3 = 0; ^ user.cpp:94:41: warning: unused variable ‘curr_hash3’ [-Wunused-variable] int curr_hash1 = 0, curr_hash2 = 0, curr_hash3 = 0; ^