Compilare: user.cpp: In function ‘void Citire()’: user.cpp:22:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=n;j++) ^ user.cpp: In function ‘void Bordare()’: user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=n+1;i++) ^ user.cpp: In function ‘int main()’: user.cpp:122:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:123:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=n;j++) ^ user.cpp:142:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<r;i++) ^ user.cpp:117:10: warning: unused variable ‘z1’ [-Wunused-variable] {int i,j,z1=0; ^