Compilare: user.cpp: In function ‘void rez(int, int, int)’: user.cpp:25:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < a.size();i++) ^ user.cpp:28:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < s[a[i].first].size(); j++) ^ user.cpp: In function ‘int main()’: user.cpp:88:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < rezultatei.size(); i++) ^ user.cpp:90:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < rezultatej.size(); j++) ^ user.cpp:94:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (a = 0; a < rezultatei[i].size(); a++) ^ user.cpp:98:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (a = 1; a < rezultatej[j].size(); a++) ^ user.cpp:73:8: warning: unused variable ‘b’ [-Wunused-variable] int a,b,x,y,i,j,contor=0; ^