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-rw-r--r--YoungPhysicist.cpp22
1 files changed, 22 insertions, 0 deletions
diff --git a/YoungPhysicist.cpp b/YoungPhysicist.cpp
new file mode 100644
index 0000000..b126bd1
--- /dev/null
+++ b/YoungPhysicist.cpp
@@ -0,0 +1,22 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main() {
+ int n;
+ cin >> n;
+ vector<vector<int>> v(n);
+ for(int i = 0; i < n; i++) {
+ for(int j = 0; j < 3; j++) {
+ int x;
+ cin >> x;
+ v[i].push_back(x);
+ }
+ }
+ int x = 0, y = 0, z = 0;
+ for(int i = 0; i < n; i++) {
+ x+=v[i][0];
+ y+=v[i][1];
+ z+=v[i][2];
+ }
+ cout << ((x == 0 && y == 0 && z == 0) ? "YES" : "NO") << endl;
+
+}