Compilare: main.cpp: In function 'void solve()': main.cpp:14:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=b;i++) ^~~ main.cpp:21:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int l=0; ^~~ main.cpp: In function 'void read()': main.cpp:10:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&a,&b); ^