Compilare: main.cpp: In function 'int main()': main.cpp:40:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<strlen(s); j++) ~^~~~~~~~~~ main.cpp: In function 'long long int recc(long long int, long long int, long long int, long long int)': main.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:99:65: warning: 'pp' may be used uninitialized in this function [-Wmaybe-uninitialized] if(xx%4==0 || xx%4==3) aparitii+=invers[pp][aa]; ~~~~~~~~~~~~~^ main.cpp:94:50: warning: 'aparitii' may be used uninitialized in this function [-Wmaybe-uninitialized] if(xx%4==0 || xx%4==3) aparitii+=normal[pp][aa]; ~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:37:13: warning: 'pp' may be used uninitialized in this function [-Wmaybe-uninitialized] int pp; ^~