Compilare: user.cpp: In function ‘int main()’: user.cpp:48:33: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(fin,"%d",&a[1][i]); ^ user.cpp:50:33: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(fin,"%d",&a[i][1]); ^ user.cpp:44:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld %lld %lld %lld",&n,&m,&c,&r); ^ user.cpp:45:58: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld %lld %lld %lld %lld",&x,&y,&z,&w,&u); ^ user.cpp:48:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[1][i]); ^ user.cpp:50:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i][1]); ^