Compilare: user.cpp: In function ‘void Dynamic()’: user.cpp:33:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i + 1 <= N) ^ user.cpp:38:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j + 1 <= N) ^ user.cpp: In function ‘void Read()’: user.cpp:13:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&M); ^ user.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",a[i]+1); ^ user.cpp: In function ‘int main()’: user.cpp:88:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drum6.in","r",stdin); ^ user.cpp:89:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drum6.out","w",stdout); ^