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luogu_ez_B3628.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+
+int minBlood = 0, blood = 0;
+
+int main() {
+    int n, current;
+    std::cin >> n;
+    for (int i = 0; i < n; i++) {
+        std::cin >> current;
+        blood += current;
+        minBlood = std::min(minBlood, blood);
+    }
+    if (minBlood >= 0) {
+        std::cout << 1 << std::endl;
+    } else {
+        std::cout << -minBlood + 1 << std::endl;
+    }
+
+    return 0;
+}