Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:31:26: error: ‘nr’ was not declared in this scope for (int j=0; j<=nr; j++) ^ user.cpp:62:13: error: ‘nr’ was not declared in this scope nr++; ^ user.cpp:66:18: error: ‘nr’ was not declared in this scope printf("%d", nr+1); ^ user.cpp:15:12: warning: unused variable ‘p’ [-Wunused-variable] int n, p=0; ^ 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("reactivi.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("reactivi.out","w",stdout); ^ user.cpp:16:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:18:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &s[i].x, &s[i].y); ^