Compilare: user.cpp: In function ‘int main()’: user.cpp:15:5: warning: ‘char* gets(char*)’ is deprecated [-Wdeprecated-declarations] gets(s); ^ In file included from /usr/include/c++/5/cstdio:42:0, from user.cpp:1: /usr/include/stdio.h:638:14: note: declared here extern char *gets (char *__s) __wur __attribute_deprecated__; ^ user.cpp:15:5: warning: ‘char* gets(char*)’ is deprecated [-Wdeprecated-declarations] gets(s); ^ In file included from /usr/include/c++/5/cstdio:42:0, from user.cpp:1: /usr/include/stdio.h:638:14: note: declared here extern char *gets (char *__s) __wur __attribute_deprecated__; ^ user.cpp:15:11: warning: ‘char* gets(char*)’ is deprecated [-Wdeprecated-declarations] gets(s); ^ In file included from /usr/include/c++/5/cstdio:42:0, from user.cpp:1: /usr/include/stdio.h:638:14: note: declared here extern char *gets (char *__s) __wur __attribute_deprecated__; ^ user.cpp:30:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ind[i]>g[i].size()) ^ user.cpp:38:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ind[i]>g[i].size()){ ^ user.cpp:14:28: warning: unused variable ‘x’ [-Wunused-variable] int n,i,maxx,nr=0,minn,x,y,k,maxpoz,ii; ^ user.cpp:14:30: warning: unused variable ‘y’ [-Wunused-variable] int n,i,maxx,nr=0,minn,x,y,k,maxpoz,ii; ^ 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("smooth2.in", "r",stdin); ^ user.cpp:13:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("smooth2.out", "w",stdout); ^ user.cpp:15:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp:55:20: warning: ‘ii’ may be used uninitialized in this function [-Wmaybe-uninitialized] cval[ii]++; ^ /tmp/cc8pIIk5.o: In function `main':