Compilare: user.cpp: In function ‘void prelsol()’: user.cpp:12:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] { smin=s[n]; ^ user.cpp: In function ‘int main()’: user.cpp:49:28: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘char*’ [-Wformat=] { scanf("%d",&v[i][j]); ^ user.cpp:51:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] {n++; e[n].v=v[i][j]; e[n].l=i; e[n].c=j;} ^ user.cpp:51:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] {n++; e[n].v=v[i][j]; e[n].l=i; e[n].c=j;} ^ user.cpp:51:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] {n++; e[n].v=v[i][j]; e[n].l=i; e[n].c=j;} ^ user.cpp:70:24: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld\n",smin); ^ user.cpp:46:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("suma3.in","r",stdin); freopen("suma3.out","w",stdout); ^ user.cpp:46:67: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("suma3.in","r",stdin); freopen("suma3.out","w",stdout); ^ user.cpp:47:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&a,&b); ^ user.cpp:49:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] { scanf("%d",&v[i][j]); ^