Submission #2544615

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Source Code Expand

import strutils
import sequtils
import math


var s = stdin.readLine
var index = -1
var total: int
var answer: seq[char]

var count = int(pow(2.0, 4.0))
var tmp: int
var op: int
var stock: int
for i in 0 ..< count:
  total = 0
  tmp = i
  stock = s[0..0].parseInt
  for c in 1 ..< s.len:
    op = tmp mod 2
    tmp = tmp div 2
    if op == 0:
      total += stock
      stock = 0
      stock += s[c..c].parseInt
    else:
      total += stock
      stock = 0
      stock -= s[c..c].parseInt
  total += stock
  if total == 7:
    index = i
    break

tmp = index
for i in 0 ..< 4:
  stdout.write(s[i])
  op = tmp mod 2
  tmp = tmp div 2
  if i == 3:
    echo("=7")
    break
  if op == 0:
    stdout.write('+')
  else:
    stdout.write('-')

Submission Info

Compile Error

Hint: system [Processing]
Hint: Main [Processing]
Hint: strutils [Processing]
Hint: parseutils [Processing]
Hint: sequtils [Processing]
Hint: math [Processing]
Hint: times [Processing]
Main.nim(9, 5) Hint: 'answer' is declared but not used [XDeclaredButNotUsed]
Hint:  [Link]
Hint: operation successful (14846 lines compiled; 1.807 sec total; 15.153MB; Release Build) [SuccessX]

Judge Result