Compilare: user.cpp: In function ‘int main()’: user.cpp:81:56: warning: unused variable ‘a’ [-Wunused-variable] int nrz, rez, sap, i, j, k, l, m, n, o, p, q, r, cj, a, b; ^ user.cpp:81:59: warning: unused variable ‘b’ [-Wunused-variable] int nrz, rez, sap, i, j, k, l, m, n, o, p, q, r, cj, a, b; ^ user.cpp:82:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &nrz, &rez, &sap); ^ user.cpp:84:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &v[i]); ^