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-rw-r--r--histogram.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/histogram.cpp b/histogram.cpp
index 2a275e7..be6ec41 100644
--- a/histogram.cpp
+++ b/histogram.cpp
@@ -1,7 +1,9 @@
#include <iostream>
#include <iomanip>
#include <vector>
+#include <algorithm>
#include <cmath>
+#include <cstring>
#include <cassert>
using namespace std;