Compilare: main.cpp: In function 'int main()': main.cpp:27:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 1 ; i <= sir2.size()-1 ; i++ ) ~~^~~~~~~~~~~~~~~~ main.cpp:29:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i <= sir1.size()-1 ; i++ ) ~~^~~~~~~~~~~~~~~~ main.cpp:39:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0 ; i <= sir2.size()-1 ; i++ ) ~~^~~~~~~~~~~~~~~~ main.cpp:48:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for ( i = 0 ; i + sir1.size() - 1 < sir2.size() ; i++ ) ^~~ main.cpp:50:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if ( curh == (1LL*hs * pp[i]) % m ) ^~ main.cpp:50:9: warning: 'curh' may be used uninitialized in this function [-Wmaybe-uninitialized] if ( curh == (1LL*hs * pp[i]) % m ) ^~