Compilare: main.cpp: In function 'int main()': main.cpp:33:53: warning: overflow in implicit constant conversion [-Woverflow] dp[i][0] = dp[i][1] = dp[i][2] = dp[i][3] = 10000000000; } ^~~~~~~~~~~ main.cpp:27:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("1expr.in", "r", stdin); ^ main.cpp:28:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("1expr.out", "w", stdout); ^