Compilare: main.cpp: In function 'bool este_cifra(char*)': main.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(n); i++) ~^~~~~~~~~~ main.cpp: In function 'int compresie(int, int, int, int)': main.cpp:24:11: warning: variable 'a' set but not used [-Wunused-but-set-variable] int p,a[1000001][1000001]; ^ main.cpp: In function 'int main()': main.cpp:56:40: warning: unused variable 'a' [-Wunused-variable] int i,nrstea=0,val,sum,l1,c1,l2,c2,a[100001][100001]; ^ main.cpp: In function 'bool este_cifra(char*)': main.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int compresie(int, int, int, int)': main.cpp:51:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp:26:11: warning: 'n[p]' is used uninitialized in this function [-Wuninitialized] if(n[p]=='*') ~~~^ main.cpp: In function 'int main()': main.cpp:90:32: warning: 'l1' is used uninitialized in this function [-Wuninitialized] cout<<compresie(l1,c1,l2,c2); ^ main.cpp:90:32: warning: 'c1' is used uninitialized in this function [-Wuninitialized] main.cpp:90:32: warning: 'l2' is used uninitialized in this function [-Wuninitialized] main.cpp:90:32: warning: 'c2' is used uninitialized in this function [-Wuninitialized]