Submission #27995320

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Source Code Expand

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#pragma GCC optimize("unroll-loops")
#include<stdio.h>
#include<iostream>
#include<vector>
#include<algorithm>
#include<string>
#include<string.h>

#ifdef LOCAL
#define eprintf(...) fprintf(stderr, __VA_ARGS__)
#else
#define NDEBUG
#define eprintf(...) do {} while (0)
#endif
#include<cassert>

using namespace std;

typedef long long LL;
typedef vector<int> VI;

#define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define EACH(i,c) for(__typeof((c).begin()) i=(c).begin(),i##_end=(c).end();i!=i##_end;++i)

template<class T> inline void amin(T &x, const T &y) { if (y<x) x=y; }
template<class T> inline void amax(T &x, const T &y) { if (x<y) x=y; }
#define rprintf(fmt, begin, end) do { const auto end_rp = (end); auto it_rp = (begin); for (bool sp_rp=0; it_rp!=end_rp; ++it_rp) { if (sp_rp) putchar(' '); else sp_rp = true; printf(fmt, *it_rp); } putchar('\n'); } while(0)

int H, W;
char C[111][111];
int D[111][111];

void MAIN() {
    scanf("%d%d", &H, &W);
    REP (i, H) scanf("%s", C[i]);

    memset(D, 0xc0, sizeof D);
    D[0][0] = 1;
    int ans = 1;
    REP (i, H) REP (j, W) if (C[i][j] == '.') {
	if (i) amax(D[i][j], D[i-1][j]+1);
	if (j) amax(D[i][j], D[i][j-1]+1);
	amax(ans, D[i][j]);
    }


    printf("%d\n", ans);
}

int main() {
    int TC = 1;
//    scanf("%d", &TC);
    REP (tc, TC) MAIN();
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void MAIN()’:
./Main.cpp:36:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   36 |     scanf("%d%d", &H, &W);
      |     ~~~~~^~~~~~~~~~~~~~~~
./Main.cpp:37:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   37 |     REP (i, H) scanf("%s", C[i]);
      |                ~~~~~^~~~~~~~~~~~

Judge Result