Compilare: main.cpp: In function 'void citire()': main.cpp:31:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(k=0;k<=strlen(s);k++) ~^~~~~~~~~~~ main.cpp:45:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<z[h].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void rezolva()': main.cpp:54:36: warning: unused variable 'x' [-Wunused-variable] int i,x1,y1,vm,k,x2,y2,xm,ym,v,x,y,va,xa,ya; ^ main.cpp:54:38: warning: unused variable 'y' [-Wunused-variable] int i,x1,y1,vm,k,x2,y2,xm,ym,v,x,y,va,xa,ya; ^ main.cpp:104:22: warning: 'ya' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<x1<<' '<<y1; ^ main.cpp:104:15: warning: 'xa' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<x1<<' '<<y1; ^~~