Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:51:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<400 && i<posStramos && s[stiva[vf]] - s[par[stiva[posStramos-i]]] <= c;++i) ^ user.cpp: In function ‘int main()’: user.cpp:64:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %lld",&n,&c); ^ user.cpp:65:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;++i) fscanf(fin, "%lld",&s[i]); ^ user.cpp:66:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;++i) fscanf(fin, "%lld",&p[i]); ^ user.cpp:69:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d",&x,&y); ^