Compilare: user.cpp: In function ‘int main()’: user.cpp:29:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] for( energy = 0, i = 0; i < lg; ++i ) energy += power[ s[i] ]; ^ user.cpp:37:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] temp = bigger[ s[i] ]; ^ user.cpp:39:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] temp *= ( change[ s[j] ] + 1 ); ^ user.cpp:11:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.in","r",stdin); ^ user.cpp:12:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.out","w",stdout); ^ user.cpp:18:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v); ^ user.cpp:19:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&pass); ^ user.cpp:21:21: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 23 , stdin); ^