Compilare: user.cpp: In function ‘int main()’: user.cpp:57:61: warning: too many arguments for format [-Wformat-extra-args] fprintf(g,"%d %d ",ind[i][0]+1,ind[i][1]+1,ind[i][2]); ^ user.cpp:9:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:12:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^