Compilare: main.cpp: In function 'int main()': main.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<s.size(); ++j) ~^~~~~~~~~ main.cpp:36:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(m[k].size()<med) ~~~~~~~~~~~^~~~ main.cpp:54:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(t+med-1>m[k].size()) ~~~~~~~^~~~~~~~~~~~ main.cpp:13:38: warning: unused variable 'st1' [-Wunused-variable] int n,q,i,k,poz,st,dr,ok,med,j,t,st1,dr1,med1; ^~~ main.cpp:13:42: warning: unused variable 'dr1' [-Wunused-variable] int n,q,i,k,poz,st,dr,ok,med,j,t,st1,dr1,med1; ^~~ main.cpp:13:46: warning: unused variable 'med1' [-Wunused-variable] int n,q,i,k,poz,st,dr,ok,med,j,t,st1,dr1,med1; ^~~~