I want to know the difference between ++i and i++

The potential increase ++i returns the increased value after increasing the value of i by 1.

int main() {
    int i = 1;
    int j = ++i;
    printf("i:%d, j:%d", i, j);
    }

Output: i:2, j:2

Rear increase i++ returns the value before increasing after increasing the value of i by 1.

int main() {
    int i = 1;
    int j = i++;
    printf("i:%d, j:%d", i, j);
}

Output: i:2, j:1

There is a guideline to use ++i rather than i++ There's nothing set for writing "only this."

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