Compilare: main.cpp: In function 'char adv()': main.cpp:27:37: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buf,sizeof(char),SIZE,fin); ^ main.cpp: In function 'int main()': main.cpp:55:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d ",&c,&n,&k); ^ main.cpp:60:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d ",&a); ^ main.cpp:118:45: warning: 'pmax' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d\n%d %d",lsolmax,psolmax-lsolmax+1,psolmax); ~~~~~~~^~~~~~~~