Compilare: main.cpp: In function 'int main()': main.cpp:15:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=d;i++) ^~~ main.cpp:17:15: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' r=n; ^ main.cpp:8:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^