Compilare: main.cpp: In function 'int main()': main.cpp:9:23: warning: variable 'schimb' set but not used [-Wunused-but-set-variable] int n,i,rez=100,a,schimb=0,r1,r2,j,nr=0; ^~~~~~ main.cpp:70:13: warning: 'r2' may be used uninitialized in this function [-Wmaybe-uninitialized] vc2[r2]--; ~~~~~~^ main.cpp:58:17: warning: 'r1' may be used uninitialized in this function [-Wmaybe-uninitialized] nr1=nr1*10+r1; ~~~~~~^~~