Easy Problems
| Problem ID | Title | Solution by | Most Popular Input by |
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| 1 | Copycat |
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| 1002 | Divisors |
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| 1003 | Making Friends |
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| 1004 | Is Anagram |
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| 1009 | Mixed Fractions |
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| 1010 | Is Prime |
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| 1011 | Fibonacci Numbers |
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| 1012 | Incompatible Crops |
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| 1013 | Leap Years |
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| 1030 | Big Factorials |
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| 1031 | Full Pyramid |
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| 1032 | Pascal's Triangle |
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| 1057 | Byang's Additions |
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| 1058 | Tidy Bits |
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| 1059 | Decent Arrays |
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| 1061 | Better Passwords |
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| 1107 | Set Union |
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| 1108 | Caesar Cipher |
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| 1109 | Little Subarray Sum |
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| 1110 | ASCII Progress Bar |
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| 1138 | Proper Leap Years |
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| 1141 | Neat Brackets |
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| 1142 | Test Cases |
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| 1143 | Little Matrix Multiplication |
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| 2 | Add Them Up |
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| 3 | Squared |
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| 4 | Pie Are Squared |
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| 490 | Switches | ||
| 990 | Missing Number |
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| 991 | Running Average |
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| 993 | Running Average Again |
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| 994 | Math and Watermelons |
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| 995 | Maximum |
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| 996 | Formatted Numbers |
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| 998 | Is Palindrome |
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| 999 | Clock Math |
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