Integer Overflow Checker
Memory CheckMediumVerify which standard signed and unsigned data types can fit a specific integer without wrapping or overflows.
Alt+8
Overflow Comparison Panel
| Type | Alias (C++) | Bounds Range | Status |
|---|---|---|---|
| int8 | char / int8_t | -128 to 127 | — |
| uint8 | unsigned char / uint8_t | 0 to 255 | — |
| int16 | short / int16_t | -32768 to 32767 | — |
| uint16 | unsigned short / uint16_t | 0 to 65535 | — |
| int32 | int / int32_t | -2147483648 to 2147483647 | — |
| uint32 | unsigned int / uint32_t | 0 to 4294967295 | — |
| int64 | long long / int64_t | -9223372036854775808 to 9223372036854775807 | — |
| uint64 | unsigned long long / uint64_t | 0 to 18446744073709551615 | — |
Example Test Cases
Signed 8-bit Max Limit
Input:127
Output:Fits in int8
Load Case
16-bit Bound Transition
Input:32768
Output:Overflows int16, fits in uint16
Load Case
32-bit Bound Transition
Input:2147483648
Output:Overflows int32, fits in uint32
Load Case
Complexity Specs
Time ComplexityO(1)
Space ComplexityO(1)
Contest Notes & Bounds
- Evaluates integer overflow bounds for standard 8, 16, 32, and 64-bit types.
- Decimals, variables, or floating values are ignored in check calculations.
- Aliases show equivalents for char, short, int, long long and unsigned variations in C++.