Eroare de compilare: user.cpp: In function ‘void compDp()’: user.cpp:26:52: error: ‘r2’ was not declared in this scope if (pref[l1] || suf[r1] || pref[r1] || suf[r2]) ^ user.cpp: In function ‘int main()’: user.cpp:48:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:51:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &s[i].t1, &s[i].t2, &s[i].d, &s[i].v); ^