Compilare: main.cpp: In function 'int main()': main.cpp:49:22: warning: unused variable 'i' [-Wunused-variable] int nr=0,i; ^ main.cpp:9:10: warning: unused variable 'ch' [-Wunused-variable] char ch; ^~ main.cpp:10:18: warning: unused variable 'l' [-Wunused-variable] int n, m, q, l, c, poz; ^ main.cpp:10:21: warning: unused variable 'c' [-Wunused-variable] int n, m, q, l, c, poz; ^