Eroare de compilare: user.cpp: In function ‘void del(int, int, int)’: user.cpp:18:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[b].size();++i) ^ user.cpp: In function ‘void euler(int)’: user.cpp:59:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<sol.size();++i) ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:46, from user.cpp:1: user.cpp: In function ‘int main()’: user.cpp:66:30: error: expected ‘)’ before ‘stdin’ freopen("domino.in", "r" stdin); ^ user.cpp:66:35: error: too few arguments to function ‘FILE* freopen(const char*, const char*, FILE*)’ freopen("domino.in", "r" stdin); ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:46, from user.cpp:1: /usr/include/stdio.h:279:14: note: declared here extern FILE *freopen (__const char *__restrict __filename, ^ user.cpp:67:31: error: expected ‘)’ before ‘stdout’ freopen("domino.out", "w" stdout); ^ user.cpp:67:37: error: too few arguments to function ‘FILE* freopen(const char*, const char*, FILE*)’ freopen("domino.out", "w" stdout); ^ In file included from /usr/include/c++/4.8/cstdio:42:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:46, from user.cpp:1: /usr/include/stdio.h:279:14: note: declared here extern FILE *freopen (__const char *__restrict __filename, ^ user.cpp:69:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &n); ^ user.cpp:72:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i", &a, &b); ^