Eroare de compilare: main.cpp: In function 'int main()': main.cpp:61:9: error: 'vector' was not declared in this scope vector<int>r; ^~~~~~ main.cpp:61:16: error: expected primary-expression before 'int' vector<int>r; ^~~ main.cpp:64:42: error: 'r' was not declared in this scope if(in(aa,a[i],b[i],c[i])) r.push_back(i); ^ main.cpp:66:16: error: 'r' was not declared in this scope int sz=r.size(); ^ main.cpp:34:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi2.in","r",stdin); ^ main.cpp:35:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi2.out","w",stdout); ^ Non zero exit status: 1