delete pics to save space

2.804.cpp

@@ -0,0 +1,93 @@
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#define Clean(x, y) memset(x, y, sizeof(x))
+//#define rep(i, j, k) for (int i = j; i <= k; i++)
+//#define Rrep(i, j, k) for (int i = j; i >= k; i--)
+using namespace std;
+
+int np, nt, nf, tp;
+const int N = 105;
+int num[N];
+int input[N][N], output[N][N];
+int Inum[N][N];
+int find (int x, int k)
+{
+	for(int i=1;i<=input[x][0];i++)
+		if ( input[x][i] == k) return i;
+	return -1;
+}
+void init()
+{
+	Clean(num, 0);
+	Clean(input, 0);
+	Clean(output, 0);
+	Clean(Inum, 0);
+	
+	for(int i=1;i<=np;i++)
+		scanf("%d", num + i);
+	scanf("%d", &nt);
+	for(int i=1;i<=nt;i++)
+	{
+		while (scanf("%d", &tp), tp)
+		{
+			if ( tp < 0 )
+			{
+				int p = find(i, -tp);
+				if ( p != -1 ) Inum[i][p]++;
+				else
+				{
+					input[i][++input[i][0]] = -tp;
+					Inum[i][input[i][0]] = 1;
+				}
+			}
+			else output[i][ ++output[i][0] ] = tp;
+		}
+	}
+	scanf("%d", &nf);
+}
+
+bool check (int x)
+{
+	for(int i=1;i<=input[x][0];i++)
+		if ( num [ input[x][i] ] < Inum[x][i] ) return false;
+	return true;
+}
+
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	int kase = 0;
+	while ( cin >> np && np != 0)
+	{
+		init();
+		int step = 0;
+		bool can = true;
+		while (can && step < nf)
+		{
+			can = false;
+			for(int k=1;k<=nt;k++)
+			{
+				if ( step < nf && check(k) )
+				{
+					can = true;
+					step++;
+					for(int i=1;i<=input[k][0];i++)
+						num[ input[k][i] ] -= Inum[k][i];
+					for(int i=1;i<=output[k][0];i++)
+						num[ output[k][i] ]++;
+				} 
+			}
+		}
+		printf("Case %d: ",++kase);
+    	if ( step == nf ) printf("still live after %d transitions\n",nf);
+   		else printf("dead after %d transitions\n",step);
+    	printf("Places with tokens:"); 
+    	for(int i=1;i<=np;i++)
+        	if (num[i]) printf(" %d (%d)",i,num[i]);
+    	printf("\n\n");
+	}
+	return 0;
+}