Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:34:15: error: ‘gets’ was not declared in this scope gets(s); ^ user.cpp:35:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < strlen(s) ; j++) ~~^~~~~~~~~~~ user.cpp:29:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sobo.in","r",stdin); ^ user.cpp:30:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sobo.out","w",stdout); ^ user.cpp:31:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n",&n,&l); ^ user.cpp:39:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cost[i]); ^