/in/foo.cc: In function 'int main()':
/in/foo.cc:5:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(scanf("%d%d",&n,&m);n--;)for(scanf("%d%d",&j,&k),i=m;i>=k;--i)dp[i]=max(dp[i],dp[i-k]+j);printf("%d\n",dp[m]);
     ^~~
/in/foo.cc:5:98: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for(scanf("%d%d",&n,&m);n--;)for(scanf("%d%d",&j,&k),i=m;i>=k;--i)dp[i]=max(dp[i],dp[i-k]+j);printf("%d\n",dp[m]);
                                                                                                  ^~~~~~