Compilare: main.cpp: In function 'long long int query(int, int)': main.cpp:185:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (st == 0) st = 1; if (dr == n + 1) dr = n; ^~ main.cpp:185:26: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if (st == 0) st = 1; if (dr == n + 1) dr = n; ^~ main.cpp: In function 'int main()': main.cpp:211:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("vaporeon.in", "r", stdin); ^ main.cpp:212:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("vaporeon.out", "w", stdout); ^ main.cpp:214:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:216:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ main.cpp:233:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &i); ^ main.cpp:255:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &x, &y); ^