33 lines
843 B
C++
33 lines
843 B
C++
#include <cstdio>
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#include <cstring>
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#include <algorithm>
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#include <iostream>
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#include <vector>
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#include <cmath>
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using namespace std;
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const int V = 100000 + 50;
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const int MaxN = 80 + 5;
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const int mod = 10000 + 7;
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const __int64 INF = 0x7FFFFFFFFFFFFFFFLL;
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const int inf = 0x7fffffff;
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int n, m, sum[V], ans;
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int main() {
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int i, j;
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while(~scanf("%d%d", &n, &m)) {
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ans = 0;
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for(i = 1; i <= n; ++i) {
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int temp;
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scanf("%d", &temp);
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sum[i] = (sum[i - 1] + temp) % m;
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}
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for(i = n; i >= 1 && i > ans; --i) {
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for(j = 1; j + i - 1 <= n; ++j)
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if((sum[j + i - 1] - sum[j - 1]) % m == 0) {
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ans = max(ans, i);
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break;
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}
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}
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printf("%d\n", ans);
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}
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}
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