Compilare: main.cpp: In function 'int main()': main.cpp:35:53: warning: overflow in implicit constant conversion [-Woverflow] dp[0][i] = dp[1][i] = dp[2][i] = dp[3][i] = 10000000000; } ^~~~~~~~~~~ main.cpp:81:25: warning: unused variable 'ps' [-Wunused-variable] int x = tst[i], ps = -1; ^~ main.cpp:29:36: 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:30:38: 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); ^