Compilare: main.cpp: In function 'int main()': main.cpp:16:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d %d",&n,&m); ^ main.cpp:19:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&nr); ^ main.cpp:40:40: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] if (s==a && cul==b && col<c) ~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:35:32: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] if (s==a && cul<b){ ~~~^~