Compilare: main.cpp: In function 'void solve()': main.cpp:127:9: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(p == 0 || !in_s[cf]) ^ main.cpp: In function 'int main()': main.cpp:156:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bolt.in", "r", stdin); ^ main.cpp:157:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bolt.out", "w", stdout); ^ main.cpp:159:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %s %s", &n, sk, ss); ^