Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:11: error: redeclaration of ‘int a’ int T, a, a; ^ user.cpp:10:8: error: ‘int a’ previously declared here int T, a, a; ^ user.cpp:15:8: error: ‘file1’ was not declared in this scope fscanf(file1, "%d", &T); ^ user.cpp:18:25: error: ‘b’ was not declared in this scope scanf("%d %d", &a, &b); ^ user.cpp:12:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euclid2.in", "r", stdin); ^ user.cpp:13:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euclid2.out", "w", stdout); ^