Compilare: user.cpp: In function ‘void solve2()’: user.cpp:120:23: warning: unused variable ‘tmp1’ [-Wunused-variable] long long tmp1 = dist[dragon][vecini[insula][i].second]; ^ user.cpp:121:23: warning: unused variable ‘tmp2’ [-Wunused-variable] long long tmp2 = dist[dragon][insula]; ^ user.cpp:122:23: warning: unused variable ‘tmp3’ [-Wunused-variable] long long tmp3 = vecini[insula][i].first; ^ user.cpp: In function ‘void citire()’: user.cpp:22:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &p); ^ user.cpp:23:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld", &n, &m); ^ user.cpp:29:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &tmp1); ^ user.cpp:35:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lldS", &tmp1, &tmp2, &tmp3); ^ user.cpp: In function ‘int main()’: user.cpp:156:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dragoni.in", "r", stdin); ^ user.cpp:157:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dragoni.out", "w", stdout); ^ user.cpp: In function ‘void solve1()’: user.cpp:91:41: warning: ‘posMax’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%lld", tipuriDragoni[posMax]); ^