Submission #95238

#	Time	Username	Problem	Language	Result	Execution time	Memory
95238		easrui	Pyramid Base (IOI08_pyramid_base)	C++14	0 / 100	2 ms	424 KiB

pyramid_base

#include <bits/stdc++.h>
using namespace std;
int N,M,X,Y,Z,u,d,tmpx;
int main()
{
    ios_base::sync_with_stdio(0),cin.tie(0);
    string S;
    cin >> N >> M >> S;
    for(int i=0; i<S.size(); i++) {
        tmpx = X;
        X = 2*Y + Z;
        Y = tmpx;
        if(S[i]=='P' && u!=2) {
            if(u==1) X++;
            else if(d==-2) Y++;
            else Z++;
        }
        if(S[i]=='L'){
            u = max(u+1,1);
            d = d+1;
        }
        else{
            u = u-1;
            d = min(d-1,-1);
        }
        X %= M; Y %= M; Z %= M;
    }
    cout << (X+Y+Z+1)%M;
}

Compilation message (stderr)

pyramid_base.cpp: In function 'int main()':
pyramid_base.cpp:9:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<S.size(); i++) {
                  ~^~~~~~~~~

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