Compilare: main.cpp: In function 'void solve(int)': main.cpp:27:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<poz[0][cul].size()-1 || j<poz[1][cul].size()-1){ ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:27:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<poz[0][cul].size()-1 || j<poz[1][cul].size()-1){ ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:50:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&d); ^ main.cpp:53:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&dist,&c); ^ main.cpp:60:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&dist,&c); ^ main.cpp: In function 'void solve(int)': main.cpp:39:31: warning: 'pozb' may be used uninitialized in this function [-Wmaybe-uninitialized] sol[cul][1]=poz[1][cul][pozb].id; ^ main.cpp:38:31: warning: 'poza' may be used uninitialized in this function [-Wmaybe-uninitialized] sol[cul][0]=poz[0][cul][poza].id; ^