Compilare: user.cpp: In function ‘int main()’: user.cpp:20:38: warning: narrowing conversion of ‘((((long long int)v[(i + -1)].col::a) * ((long long int)i)) % ((long long int)n))’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] v[i] = {(1LL * v[i - 1].a * i) % n, (1LL * v[i - 1].b * i) % n, (1LL * v[i - 1].c * i) % n}; ^ user.cpp:20:66: warning: narrowing conversion of ‘((((long long int)v[(i + -1)].col::b) * ((long long int)i)) % ((long long int)n))’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] v[i] = {(1LL * v[i - 1].a * i) % n, (1LL * v[i - 1].b * i) % n, (1LL * v[i - 1].c * i) % n}; ^ user.cpp:20:94: warning: narrowing conversion of ‘((((long long int)v[(i + -1)].col::c) * ((long long int)i)) % ((long long int)n))’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] v[i] = {(1LL * v[i - 1].a * i) % n, (1LL * v[i - 1].b * i) % n, (1LL * v[i - 1].c * i) % n}; ^