Compilare: main.cpp: In function 'int main()': main.cpp:21:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(j=1;j<=n;j++) ^~~ main.cpp:23:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' printf("\n"); ^~~~~~ main.cpp:6:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tablete.in","r",stdin); ^ main.cpp:7:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tablete.out","w",stdout); ^ main.cpp:9:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^