RGB거리

#include <algorithm> #include <iostream> #include <vector> int g_no_test; std::vector<int> g_cost; void pre_setting(void) { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL); } void input_action(void) { int i; std::cin >> g_no_test; g_cost = std::vector<int>((g_no_test + 2) * 3, 0); i = 0; while (++i <= g_no_test) std::cin >> g_cost[i * 3] >> g_cost[i * 3 + 1] >> g_cost[i * 3 + 2]; } void logic(void) { int i; i = 0; while (++i <= g_no_test + 1) { g_cost[i * 3] += std::min(g_cost[(i - 1) * 3 + 1], g_cost[(i - 1) * 3 + 2]); g_cost[i * 3 + 1] += std::min(g_cost[(i - 1) * 3], g_cost[(i - 1) * 3 + 2]); g_cost[i * 3 + 2] += std::min(g_cost[(i - 1) * 3], g_cost[(i - 1) * 3 + 1]); } } void output_action(void) { std::cout << std::min( g_cost[(g_no_test + 1) * 3], std::min(g_cost[(g_no_test + 1) * 3 + 1], g_cost[(g_no_test + 1) * 3 + 2])); } void solution(void) { input_action(); logic(); output_action(); } int main(void) { pre_setting(); solution(); return (0); }