Compilare: user.cpp: In function ‘int main()’: user.cpp:128:27: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin >> n >> m >> init + 1; ^ user.cpp:121:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("diez.in", "r", stdin); ^ user.cpp:122:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("diez.out", "w", stdout); ^