Compilare: main.cpp: In function 'int main()': main.cpp:59:39: warning: narrowing conversion of 'num' from 'long long int' to 'int' inside { } [-Wnarrowing] updates[j].push(Update{dr, num}); ^ main.cpp:50:11: warning: unused variable 'sol' [-Wunused-variable] int sol = -1; ^~~ main.cpp:17:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("blis.in", "r", stdin); ^ main.cpp:18:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("blis.out", "w", stdout); ^ main.cpp:21:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k); ^ main.cpp:23:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("\n%s", s + 1); ^