Compilare: main.cpp: In function 'int main()': main.cpp:227:66: warning: narrowing conversion of '(((1ll * ((long long int)var[pos])) * ((long long int)v[pos].Point::x)) % 1000000007ll)' from 'long long int' to 'int' inside { } [-Wnarrowing] updateaibvar(op, {0, var[pos], 1LL * var[pos] * v[pos].x % modulo, 1LL * var[pos] * v[pos].y % modulo, (dpsum[pos] + 1LL * var[pos] * v[pos].x % modulo * v[pos].y % modulo) % modulo}, n, i); ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:227:102: warning: narrowing conversion of '(((1ll * ((long long int)var[pos])) * ((long long int)v[pos].Point::y)) % 1000000007ll)' from 'long long int' to 'int' inside { } [-Wnarrowing] updateaibvar(op, {0, var[pos], 1LL * var[pos] * v[pos].x % modulo, 1LL * var[pos] * v[pos].y % modulo, (dpsum[pos] + 1LL * var[pos] * v[pos].x % modulo * v[pos].y % modulo) % modulo}, n, i); ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:227:182: warning: narrowing conversion of '((((long long int)dpsum[pos]) + (((((1ll * ((long long int)var[pos])) * ((long long int)v[pos].Point::x)) % 1000000007ll) * ((long long int)v[pos].Point::y)) % 1000000007ll)) % 1000000007ll)' from 'long long int' to 'int' inside { } [-Wnarrowing] updateaibvar(op, {0, var[pos], 1LL * var[pos] * v[pos].x % modulo, 1LL * var[pos] * v[pos].y % modulo, (dpsum[pos] + 1LL * var[pos] * v[pos].x % modulo * v[pos].y % modulo) % modulo}, n, i); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:21:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^