Editorial for WC '18 Contest 2 J2 - This Message will Self-Destruct - Olympiads Online Judge

Editorial for WC '18 Contest 2 J2 - This Message will Self-Destruct

Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.

Let $m$ $m$ be the numerical value ( $0 \dots 9$ $0 \dots 9$ ) of the first character of $S$ $S$ . We can obtain this value by subtracting the ASCII value of 0 from the ASCII value of that character. Similarly, let $s_1$ $s_{1}$ and $s_2$ $s_{2}$ be the numerical values of the third and fourth characters, respectively. Then, $m$ $m$ corresponds to minutes, $s_1$ $s_{1}$ to tens of seconds, and $s_2$ $s_{2}$ to single seconds. The total number of seconds therefore comes out to $60m+10s_1+s_2$ $60 m + 10 s_{1} + s_{2}$ .

Comments

There are no comments at the moment.