30 lines
580 B
C++
30 lines
580 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int n, p;
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int a[5000005];
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int cha[5000005];
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int main()
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{
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scanf("%d%d", &n, &p);
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for (int i = 1; i <= n; ++i)
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{
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scanf("%d", &a[i]);
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cha[i] = a[i] - a[i - 1];
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}
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for (int i = 1; i <= p; ++i)
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{
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int x, y, z;
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scanf("%d%d%d", &x, &y, &z);
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cha[x] += z;
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cha[y + 1] -= z;
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}
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int minn = cha[1];
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a[1] = cha[1];
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for (int i = 2; i <= n; ++i)
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{
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a[i] = a[i - 1] + cha[i];
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minn = min(a[i], minn);
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}
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printf("%d\n", minn);
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return 0;
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} |