Compilare: main.cpp: In function 'int verif(unsigned int)': main.cpp:28:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j->inf==val) return 1; ~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:65:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=k; i<n; i++) ~^~ main.cpp:61:17: warning: unused variable 'a1' [-Wunused-variable] int nrsol=0,a1,a2; ^~ main.cpp:61:20: warning: unused variable 'a2' [-Wunused-variable] int nrsol=0,a1,a2; ^~ main.cpp:35:24: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(s,10000005,f);pp1=pp2=1; ^ main.cpp:37:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",s2); ^