Eroare de compilare: user.cpp:4:1: error: ‘bitset’ does not name a type bitset<4100> c[4100],r; ^ user.cpp: In function ‘int main()’: user.cpp:8:31: error: ‘c’ was not declared in this scope scanf("%d%d",a+i,b+i),c[a[i]<b[i]?a[i]:b[i]].set(a[i]<b[i]?b[i]:a[i]); ^ user.cpp:10:9: error: ‘r’ was not declared in this scope r=c[a[j]]&c[b[j]],t+=r.count(); ^ user.cpp:10:11: error: ‘c’ was not declared in this scope r=c[a[j]]&c[b[j]],t+=r.count(); ^ user.cpp:6:92: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("triplete.in","r",stdin),freopen("triplete.out","w",stdout),scanf("%d%d",&n,&m); ^ user.cpp:6:92: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:92: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]