Compilare: user.cpp: In function ‘void BF()’: user.cpp:63:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dp[*it][i - C[node]] > dp[node][i] + D[node]) ^ user.cpp:66:47: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[*it][i - C[node]] = dp[node][i] + D[node]; ^ user.cpp:54:13: warning: unused variable ‘node’ [-Wunused-variable] int i, node; ^ user.cpp: In function ‘int main()’: user.cpp:21:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.in", "r", stdin); ^ user.cpp:22:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.out", "w", stdout); ^ user.cpp:24:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i %i", &N, &P, &K); ^ user.cpp:26:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i", &D[i], &C[i]); ^ user.cpp:36:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i", &X, &Y); ^