题目传送门 /* 贪心:排序后,当a[3] > 2 * (a[1] + a[2]), 可以最多的2个,其他的都是1个,ggr,ggb, ggr... ans = a[1] + a[2]; 或先2个+1个,然后k个rgb...r = x + k; g = 2 * (x + z) + k; b = z + k; ans = (x + z) + k = (a[1] + a[2] + a[3]) / 3; 隔了一段时间有做到这题又不会了,看别人的解题报告水平果然没有提升,以后做题要独立思考,看别人的也要…

#include <iostream> #include <string> using namespace std; int main(){ int n; cin >> n; string str; cin >> str; , x = ; ; i < n ; ++ i){ if(str[i] == 'B') cnt+=(x << i); } cout<<cnt<<endl; }   Codeforces Round…

Codeforces Round #267 (Div. 2) C. George and Job题目链接请点击~ The new ITone 6 has been released recently and George got really keen to buy it. Unfortunately, he didn't have enough money, so George was going to work as a programmer. Now he faced the follow…

http://codeforces.com/contest/478/problem/C C. Table Decorations time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have r red, g green and b blue balloons. To decorate a single table for…

A. Initial Bet time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are five people playing a game called "Generosity". Each person gives some non-zero number of coins b as an initial…

C. Table Decorations time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have r red, g green and b blue balloons. To decorate a single table for the banquet you need exactly three balloons.…

C. Table Decorations   You have r red, g green and b blue balloons. To decorate a single table for the banquet you need exactly three balloons. Three balloons attached to some table shouldn't have the same color. What maximum number t of tables can b…

D. Red-Green Towers time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output There are r red and g green blocks for construction of the red-green tower. Red-green tower can be built following next…

D. Red-Green Towers   There are r red and g green blocks for construction of the red-green tower. Red-green tower can be built following next rules: Red-green tower is consisting of some number of levels; Let the red-green tower consist of n levels,…

http://codeforces.com/contest/478/problem/B B. Random Teams time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output n participants of the competition were split into m teams in some manner so that…