#1618. 【EOJ Lengthy Round】代数数

https://sjzezoj.com/submission/64417

S2OJ/1618/1618.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int t;
+
+    cin >> t;
+
+    while (t--) {
+        int l, r;
+
+        cin >> l >> r;
+
+        cout << r - l + 1 << endl;
+    }
+
+    return 0;
+}