Compilare: main.cpp: In function 'void citire()': main.cpp:45:13: warning: unused variable 'a' [-Wunused-variable] 45 | int a,b,c,d; | ^ main.cpp:45:15: warning: unused variable 'b' [-Wunused-variable] 45 | int a,b,c,d; | ^ main.cpp:45:19: warning: unused variable 'd' [-Wunused-variable] 45 | int a,b,c,d; | ^ main.cpp: In function 'int main()': main.cpp:86:9: warning: unused variable 'nr5' [-Wunused-variable] 86 | int nr5=1; | ^~~ main.cpp: In function 'void citire()': main.cpp:49:39: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] 49 | graf[intrare.x][intrare.y]=++c; | ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~