Compilare: user.cpp: In function ‘int main()’: user.cpp:24:19: warning: unused variable ‘lin’ [-Wunused-variable] int n,m,i,j,l,lin,col,x,y,k,val; ^ user.cpp:24:23: warning: unused variable ‘col’ [-Wunused-variable] int n,m,i,j,l,lin,col,x,y,k,val; ^ user.cpp:21:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plantatie.in","r",stdin); ^ user.cpp:22:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("plantatie.out","w",stdout); ^ user.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:37:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] if(l==0) scanf("%d",&r[i][j][0]); ^ user.cpp:49:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&i,&j,&l); ^