Compilare: main.cpp: In function 'int main()': main.cpp:47:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int i=0;i<v[hashed].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:60:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i=0;i<v[hashed].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void powermaker()': main.cpp:14:18: warning: iteration 9 invokes undefined behavior [-Waggressive-loop-optimizations] 14 | powers[i]=check; | ~~~~~~~~~^~~~~~ main.cpp:12:18: note: within this loop 12 | for(int i=1;i<=10;i++) | ~^~~~ main.cpp: In function 'int hasher(int)': main.cpp:29:16: warning: 'newx' may be used uninitialized [-Wmaybe-uninitialized] 29 | return newx%mod; | ~~~~^~~~ main.cpp:21:15: note: 'newx' was declared here 21 | long long newx; | ^~~~ In function 'int hasher(int)', inlined from 'int main()' at main.cpp:42:22: main.cpp:29:16: warning: 'newx' may be used uninitialized [-Wmaybe-uninitialized] 29 | return newx%mod; | ~~~~^~~~ main.cpp: In function 'int main()': main.cpp:21:15: note: 'newx' was declared here 21 | long long newx; | ^~~~