Compilare: user.cpp: In function ‘int main()’: user.cpp:37:25: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long unsigned int’ [-Wformat=] fprintf(fout,"%ld",s); ^ user.cpp: In function ‘void citire()’: user.cpp:12:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&n,&m,&k); ^ user.cpp:15:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&mat[i][j]); ^ user.cpp:16:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d",&x,&y,&x2,&y2); ^ user.cpp: In function ‘int main()’: user.cpp:36:25: warning: ‘s’ may be used uninitialized in this function [-Wmaybe-uninitialized] s+=m1[p][x2][y2]; ^