Submission #1076408

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Source Code Expand

#include <algorithm>  
#include <iostream>  
#include <sstream>  
#include <string>  
#include <cstring>
#include <vector>  
#include <queue>  
#include <set>  
#include <map>  
#include <cstdio>  
#include <cstdlib>  
#include <cctype>  
#include <cmath>  
#include <list>  
#include <cassert>
#include <ctime>
#include <climits>
using namespace std;  

#define PB push_back  
#define MP make_pair  
#define SZ(v) ((int)(v).size())  
#define FOR(i,a,b) for(int i=(a);i<(b);++i)  
#define REP(i,n) FOR(i,0,n)  
#define FORE(i,a,b) for(int i=(a);i<=(b);++i)  
#define REPE(i,n) FORE(i,0,n)  
#define FORSZ(i,a,v) FOR(i,a,SZ(v))  
#define REPSZ(i,v) REP(i,SZ(v))  
typedef long long ll;
typedef unsigned long long ull;
ll gcd(ll a,ll b) { return b==0?a:gcd(b,a%b); }

const int MAXZERO=2000;
const int MAXONE=2000;
const int MAXK=2000;
const int MAXH=MAXZERO+MAXONE-1;
const int MOD=1000000007;

int nzero,none,k;

int F[MAXH+1][MAXZERO+MAXONE];


void inc(int &a,int b) { if((a+=b)>=MOD) a-=MOD; }
void run() {
	scanf("%d%d%d",&nzero,&none,&k);
	int ret=0;
	F[0][0]=1;
	for(int h=1;;++h) {
		int nside=(k-1)*h;
		if(none-1+nzero<nside) break;
		REP(i,nzero+none) REP(j,k) if(i>=j) inc(F[h][i],F[h-1][i-j]);
		if(none-1>=nside) continue;
		//printf("%d = %d\n",h,F[h][none-1]);
		inc(ret,F[h][none-1]);
	}
	printf("%d\n",ret);
}

int main() {
	run();
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void run()’:
./Main.cpp:46:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&nzero,&none,&k);
                                 ^

Judge Result