제출 #985450

#제출 시각아이디문제언어결과실행 시간메모리
985450islam998Wall (IOI14_wall)C++17
컴파일 에러
0 ms0 KiB
#include <iostream> #include <vector> #include <algorithm> #define MOD 1000000007 using namespace std; typedef long long ll; int main() { int N; cin >> N; vector<int> a(N), b(N); for (int i = 0; i < N; ++i) { cin >> a[i]; } for (int i = 0; i < N; ++i) { cin >> b[i]; } // Function to calculate water collected given heights auto calculateWater = [](const vector<int>& heights) { int N = heights.size(); vector<int> leftMax(N), rightMax(N); leftMax[0] = heights[0]; for (int i = 1; i < N; ++i) { leftMax[i] = max(leftMax[i - 1], heights[i]); } rightMax[N - 1] = heights[N - 1]; for (int i = N - 2; i >= 0; --i) { rightMax[i] = max(rightMax[i + 1], heights[i]); } ll totalWater = 0; for (int i = 0; i < N; ++i) { totalWater += min(leftMax[i], rightMax[i]) - heights[i]; } return totalWater; }; // Calculate water collected for all possible combinations ll totalSum = 0; int totalCombinations = 1 << N; // 2^N combinations for (int mask = 0; mask < totalCombinations; ++mask) { vector<int> heights(N); for (int i = 0; i < N; ++i) { if (mask & (1 << i)) { heights[i] = b[i]; } else { heights[i] = a[i]; } } totalSum = (totalSum + calculateWater(heights)) % MOD; } cout << totalSum << endl; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccunzEAW.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc6oCLUU.o:wall.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccunzEAW.o: in function `main':
grader.cpp:(.text.startup+0x133): undefined reference to `buildWall(int, int, int*, int*, int*, int*, int*)'
collect2: error: ld returned 1 exit status