Merge pull request #61 from monkukui/master

yosupo06 · web-flow · commit 1abafdea9136 · 2020-10-12T23:35:17.000+09:00
Delete unused variable
diff --git a/test/unittest/utils/math_test.cpp b/test/unittest/utils/math_test.cpp
@@ -17,7 +17,6 @@ TEST(UtilsMathTest, FactorsTest) {
 
 bool is_primitive_root_naive(int m, int g) {
     assert(1 <= g && g < m);
-    auto prs = factors(m - 1);
     int x = 1;
     for (int i = 1; i <= m - 2; i++) {
         x = (int)((long long)(x)*g % m);
diff --git a/test/utils/math.hpp b/test/utils/math.hpp
@@ -18,7 +18,6 @@ std::vector<int> factors(int m) {
 
 bool is_primitive_root(int m, int g) {
     assert(1 <= g && g < m);
-    auto prs = factors(m - 1);
     for (int x : factors(m - 1)) {
         if (atcoder::internal::pow_mod_constexpr(g, (m - 1) / x, m) == 1) return false;
     }

Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,6 @@ std::vector<int> factors(int m) {`
`18`	`18`
`19`	`19`	`bool is_primitive_root(int m, int g) {`
`20`	`20`	`assert(1 <= g && g < m);`
`21`		`- auto prs = factors(m - 1);`
`22`	`21`	`for (int x : factors(m - 1)) {`
`23`	`22`	`if (atcoder::internal::pow_mod_constexpr(g, (m - 1) / x, m) == 1) return false;`
`24`	`23`	`}`