Compilare: user.cpp: In function ‘int main()’: user.cpp:8:20: warning: unused variable ‘p’ [-Wunused-variable] int i,j,n,m,ma,p,l,c,maa; ^ user.cpp:6:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen("joc.in","r",stdin); ^ user.cpp:7:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joc.out","w",stdout); ^ user.cpp:9:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:12:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&(a[i][j])); ^ user.cpp:43:12: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] maa=a[i][j]; ^