refactor: remove println!()

Author: username

rust/src/p001.rs

@@ -5,9 +5,7 @@
 /// 同じようにして, 1000 未満の 3 か 5 の倍数になっている数字の合計を求めよ。
 /// ```
 fn problem_001(from: u64, to: u64) -> u64 {
-  let ret = (from..to).filter(|num| num % 3 == 0 || num % 5 == 0).sum();
-  println!("result=[{}]", ret);
-  ret
+  (from..to).filter(|num| num % 3 == 0 || num % 5 == 0).sum()
 }
 
 #[cfg(test)]

rust/src/p002.rs

@@ -23,7 +23,6 @@ fn problem_002(to: u32) -> u32 {
       break;
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p003.rs

@@ -17,7 +17,6 @@ fn problem_003(value: u64) -> u64 {
       break;
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p004.rs

@@ -8,9 +8,7 @@ use crate::util::get_palindrome;
 /// では, 3桁の数の積で表される回文数の最大値を求めよ。
 /// ```
 fn problem_004(digits: u64) -> u64 {
-  let result = get_palindrome(digits);
-  println!("result=[{}]", result);
-  result
+  get_palindrome(digits)
 }
 
 #[cfg(test)]

rust/src/p005.rs

@@ -34,8 +34,6 @@ fn problem_005_2(min: u64, max: u64) -> u64 {
   for num in min..=max {
     result = lcm(result, num);
   }
-
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p006.rs

@@ -9,11 +9,9 @@
 /// ## Note
 /// [1,2] の場合、二乗の和 = 1*1 + 2*2 = 5、和の二乗 = (1+2) * (1+2) = 9。100%和の二乗の方が大きい。
 fn problem_006(max: u64) -> u64 {
-  let ret1 = (1..=max).map(|num| num.pow(2)).sum::<u64>();
-  let ret2 = (1..=max).sum::<u64>().pow(2);
-  let result = ret2 - ret1;
-  println!("result=[{}]", result);
-  result
+  let left = (1..=max).map(|num| num.pow(2)).sum::<u64>();
+  let right = (1..=max).sum::<u64>().pow(2);
+  right - left
 }
 
 #[cfg(test)]

rust/src/p007.rs

@@ -18,7 +18,6 @@ fn problem_007(number: u64) -> u64 {
       break;
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p008.rs

@@ -43,10 +43,7 @@ fn problem_008(number: &str, digit: usize) -> u64 {
       sums.push(block_sum);
     }
   }
-  let result = sums.into_iter().max().unwrap();
-
-  println!("result=[{}]", result);
-  result
+  sums.into_iter().max().unwrap()
 }
 
 #[cfg(test)]

rust/src/p009.rs

@@ -26,8 +26,6 @@ fn problem_009(sum: u64) -> u64 {
       }
     }
   }
-
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p010.rs

@@ -14,8 +14,6 @@ fn problem_010(max: u64) -> u64 {
       continue;
     }
   }
-
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p011.rs

@@ -75,9 +75,7 @@ fn problem_011(consecutive: isize) -> isize {
       max = cmp::max(multiply_cells(&table, row, col, -1, 1, consecutive), max);
     }
   }
-  let result = max;
-  println!("result=[{}]", result);
-  result
+  max
 }
 
 fn multiply_cells(

rust/src/p012.rs

@@ -39,7 +39,6 @@ fn problem_012(max_divisor_number: u64) -> u64 {
       }
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p013.rs

@@ -214,9 +214,7 @@ fn problem_013(digit: usize) -> u64 {
     .map(|s| BigDecimal::from_str(s).unwrap())
     .sum::<BigDecimal>();
   let head = &sum.to_string()[..digit];
-  let result = head.parse::<u64>().unwrap();
-  println!("result=[{}]", result);
-  result
+  head.parse::<u64>().unwrap()
 }
 
 #[cfg(test)]

rust/src/p014.rs

@@ -34,7 +34,6 @@ fn problem_014(min: u128, max: u128) -> u128 {
       }
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p015.rs

@@ -39,9 +39,7 @@ fn problem_015(x: u128, y: u128) -> String {
     denominator = denominator.mul(BigDecimal::from_u128(i).unwrap());
   }
 
-  let result = numerator.div(denominator).to_string();
-  println!("result=[{}]", result);
-  result
+  numerator.div(denominator).to_string()
 }
 
 #[cfg(test)]

rust/src/p016.rs

@@ -11,13 +11,11 @@ use crate::util::pow;
 /// ```
 fn problem_016(exponent: u128) -> u64 {
   let num_str = pow(2, exponent).to_string();
-  let result = num_str
+  num_str
     .chars()
     .into_iter()
     .map(|s| s.to_string().parse::<u64>().unwrap())
-    .sum::<u64>();
-  println!("result=[{}]", result);
-  result
+    .sum::<u64>()
 }
 
 #[cfg(test)]

rust/src/p017.rs

@@ -21,7 +21,6 @@ fn problem_017(max: u128) -> usize {
   for i in 1..=max as usize {
     result += to_english(i).len()
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p018.rs

@@ -96,9 +96,7 @@ fn problem_018(value_str: &str) -> u32 {
     }
   }
   // 三角形の下から上に向かって加算し続け、頂点に合計値が設定される
-  let result = triangle[0][0];
-  println!("result=[{}]", result);
-  result
+  triangle[0][0]
 }
 
 #[cfg(test)]

rust/src/p019.rs

@@ -32,8 +32,6 @@ fn problem_019() -> u32 {
     }
     datetime = NaiveDate::from_ymd(year, month, datetime.day());
   }
-
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p020.rs

@@ -18,14 +18,12 @@ fn problem_020(n: u128) -> u128 {
   for i in 1..n {
     divide = divide.mul(BigDecimal::from_u128(n - i).unwrap());
   }
-  let result = divide
+  divide
     .to_string()
     .chars()
     .into_iter()
     .map(|v| v.to_string().parse::<u128>().unwrap())
-    .sum();
-  println!("result=[{}]", result);
-  result
+    .sum()
 }
 
 #[cfg(test)]

rust/src/p021.rs

@@ -19,7 +19,6 @@ fn problem_021(n: u128) -> u128 {
       result += i;
     }
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p022.rs

@@ -5187,7 +5187,6 @@ fn problem_022() -> usize {
     let score = get_score(&alphabets, word) * (i + 1);
     result += score;
   }
-  println!("result=[{}]", result);
   result
 }
 

rust/src/p025.rs

@@ -37,7 +37,6 @@ fn problem_025(digit: usize) -> String {
     prevprev = prev;
     prev = next;
   }
-  println!("result=[{}]", result);
   result.to_string()
 }
 

rust/src/p029.rs

@@ -25,9 +25,7 @@ fn problem_029(min: u128, max: u128) -> usize {
       values.insert(pow(a, b));
     }
   }
-  let result = values.len();
-  println!("result=[{}]", result);
-  result
+  values.len()
 }
 
 #[cfg(test)]

rust/src/p030.rs

@@ -28,7 +28,6 @@ fn problem_030(min: u32, exponent: u32) -> u32 {
       result += sum;
     }
   }
-  println!("result=[{}]", result);
   result
 }