Compilare: user.cpp: In function ‘void solve()’: user.cpp:72:7: warning: unused variable ‘ttt’ [-Wunused-variable] int ttt = getindex(sir[i-1]); ^ user.cpp:73:7: warning: unused variable ‘qqq’ [-Wunused-variable] int qqq = getindex(sir[i+K-1]); ^ user.cpp:62:9: warning: unused variable ‘j’ [-Wunused-variable] int i, j, k, s, lamisto; ^ user.cpp:62:12: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k, s, lamisto; ^ user.cpp: In function ‘int main()’: user.cpp:99:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pikachu.in", "rt", stdin); ^ user.cpp:100:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pikachu.out", "wt", stdout); ^ user.cpp:103:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &K); ^ user.cpp:106:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &sir[i]), A.pb(sir[i]); ^