Compilare: main.cpp: In function 'int main()': main.cpp:35:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j=1;j<=n;++j) ^~~ main.cpp:40:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' printf("\n"); ^~~~~~ main.cpp:21:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("royfloyd.in","r",stdin); ^ main.cpp:22:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("royfloyd.out","w",stdout); ^ main.cpp:23:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:27:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^