Compilare: main.cpp: In function 'int main()': main.cpp:26:7: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=a-1;i++) ^~~ main.cpp:28:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' v[a]=n; ^ main.cpp:15:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&n,&a,&b); ^