Compilare: user.cpp: In function ‘int main()’: user.cpp:35:33: warning: unused variable ‘m1’ [-Wunused-variable] int m,n,l1,l2,c1,c2,i,j,k,p,m1,m2,cnt,gol=0,q,nr=0,y,caz; ^ user.cpp:35:36: warning: unused variable ‘m2’ [-Wunused-variable] int m,n,l1,l2,c1,c2,i,j,k,p,m1,m2,cnt,gol=0,q,nr=0,y,caz; ^ user.cpp:32:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elicop.in","r",stdin); ^ user.cpp:33:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elicop.out","w",stdout); ^ user.cpp:37:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&m,&n); ^ user.cpp:40:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ user.cpp:42:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ user.cpp:45:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d",&l1,&c1,&l2,&c2,&p); ^ user.cpp:60:14: warning: ‘caz’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(caz==2) ^