Compilare: main.cpp: In function 'int main()': main.cpp:22:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&n,&m); ^ main.cpp:27:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&a[i][j]); ^ main.cpp:31:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&q); ^ main.cpp:35:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&lat); ^ main.cpp:54:21: warning: 'maxi' may be used uninitialized in this function [-Wmaybe-uninitialized] if (maxi < su) ^~