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28 lines
569 B
28 lines
569 B
2 years ago
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#include <bits/stdc++.h>
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using namespace std;
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const int N = 110;
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int n;
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int w[N][N], f[N];
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int main() {
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cin >> n;
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for (int i = 1; i <= n; i++)
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for (int j = 1; j <= n; j++)
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cin >> w[i][j];
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// 初始化为最大值
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memset(f, 0x3f, sizeof f);
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for (int i = 1; i <= n; i++)
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for (int j = 1; j <= n; j++) {
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if (i == 1 && j == 1)
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f[j] = w[i][j];
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else
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f[j] = min(f[j], f[j - 1]) + w[i][j];
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}
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printf("%d\n", f[n]);
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return 0;
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}
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