Compilare: main.cpp: In function 'DpNode multiply(DpNode, DpNode)': main.cpp:30:52: warning: narrowing conversion of '((((long long int)a.DpNode::cnt) * ((long long int)b.DpNode::cnt)) % 1000000007ll)' from 'long long int' to 'int' inside { } [-Wnarrowing] return {a.best + b.best, (long long)a.cnt * b.cnt % MOD}; ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:48:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &N); ^ main.cpp:51:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &a, &b); ^