Compilare: user.cpp: In function ‘int main()’: user.cpp:67:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<=strlen(s+1);i++){ ^ user.cpp:61:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scadere.in","r",stdin); ^ user.cpp:62:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scadere.out","w",stdout); ^ user.cpp:63:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&tip,&n); ^ user.cpp:64:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=n;i++) scanf("%d\n",&x[i]); ^ user.cpp:66:10: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s+1); ss=""; ^ user.cpp:82:28: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st=0,dr=0,max=0,nr=0,s,l; ^ /tmp/ccvXyJBh.o: In function `main': user.cpp:(.text.startup+0x34e): warning: the `gets' function is dangerous and should not be used.