Compilare: user.cpp: In function ‘int main()’: user.cpp:12:25: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘unsigned char*’ [-Wformat=] scanf("%d",&a[i]); ^ user.cpp:14:25: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘unsigned char*’ [-Wformat=] scanf("%d",&b[i]); ^ user.cpp:27:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<d[m][n].size();i++) ^ user.cpp:8:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.in","r",stdin); ^ user.cpp:9:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.out","w",stdout); ^ user.cpp:10:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&m,&n); ^ user.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^ user.cpp:14:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&b[i]); ^