Compilare: main.cpp: In function 'int main()': main.cpp:27:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> txt + 1 >> n; ~~~~^~~ main.cpp:32:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> c + 1; ~~^~~ main.cpp:24:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.in", "r", stdin); ^ main.cpp:25:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ahocorasick.out", "w", stdout); ^