39 lines
896 B
C++
39 lines
896 B
C++
#include<iostream>
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#include<stdio.h>
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#include<string.h>
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using namespace std;
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int c1[700],c2[700];
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int a[10],b[10];
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int main()
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{
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int T;
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scanf("%d",&T);
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for(int cas = 1;cas <= T;cas++)
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{
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memset(c1,0,sizeof(c1));
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memset(c2,0,sizeof(c2));
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int n,kk;
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scanf("%d%d",&n,&kk);
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int i,j,k;
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for(i = 1;i <= kk;i++){
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scanf("%d%d",&a[i],&b[i]);
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}
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for(i = 0;i <= a[1]*b[1]&&i<=n;i+=a[1]){
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c1[i] = 1;
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}
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for(i = 2;i <= kk;i++){
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for(j = 0;j <= n;j++){
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for(k = 0;k<=a[i]*b[i]&&k<=n;k+=a[i]){
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c2[k+j] += c1[j];
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}
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}
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for(j = 0;j <= n;j++){
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c1[j] = c2[j];
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c2[j] = 0;
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}
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}
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printf("%d\n",c1[n]);
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}
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return 0;
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}
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