Submission #302567

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
302567	2020-09-18T19:25:43 Z	milisav	Biochips (IZhO12_biochips)	C++14	Compilation error	0 ms	0 KB

biochips

#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#define maxn 2000010
#define maxm 5010
using namespace std;
int n,m;
int rt;
int p[maxn];
int x[maxn];
vector<int> ch[maxn];
int a[maxn];
int s[maxn];
int dp[maxn][maxm];
int id=0;
int tot=0;
void dfs(int u) {
    int cid=id++;
    a[cid]=x[u];
    tot++;
    for(auto v:ch[u]) dfs(v);
    s[cid]=id;
}
int main() {
	scanf("%d %d",&n,&m);
	for(int i=1;i<=n;i++) {
        scanf("%d %d",&p[i],&x[i]);
        if(p[i]==0) rt=i;
        else ch[p[i]].push_back(i);
	}
	dfs(rt);
	assert(tot==n);
	for(int j=1;j<=m;j++) dp[0][j]=-1e9;
	for(int i=0;i<n;i++) {
        for(int j=0;j<=m;j++) dp[i+1][j]=max(dp[i+1][j],dp[i][j]);
        for(int j=0;j<=m-1;j++) dp[s[i]][j+1]=max(dp[s[i]][j+1],dp[i][j]+a[i]);
	}
    printf("%d",dp[n][m]);
	return 0;
}

Compilation message

biochips.cpp: In function 'int main()':
biochips.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |  scanf("%d %d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~~
biochips.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |         scanf("%d %d",&p[i],&x[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x19): relocation truncated to fit: R_X86_64_32S against symbol `std::ios_base::Init::_S_refcount' defined in .bss._ZNSt8ios_base4Init11_S_refcountE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x59): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x60): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x6b): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x80): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0x8b): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0xa0): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0xab): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0xba): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cout_sync' defined in .bss._ZN14__gnu_internal13buf_cout_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0xcd): relocation truncated to fit: R_X86_64_PC32 against symbol `__gnu_internal::buf_cin_sync' defined in .bss._ZN14__gnu_internal12buf_cin_syncE section in /usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(globals_io.o)
/usr/lib/gcc/x86_64-linux-gnu/9/libstdc++.a(ios_init.o): In function `std::ios_base::Init::Init()':
(.text._ZNSt8ios_base4InitC2Ev+0xd4): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status